执行大型SQL脚本(使用GO命令)


89

我需要从C#程序中执行一大套SQL语句(创建一堆表,视图和存储过程)。

这些语句需要用GO语句分隔,但是SqlCommand.ExecuteNonQuery()不喜欢GO语句。我想提供参考的解决方案是将SQL字符串拆分为几GO行,然后分别执行每个批处理。

有没有更简单/更好的方法?

Answers:


105

使用了解GO分隔符的SQL Server管理对象(SMO)。在这里查看我的博客文章:http: //weblogs.asp.net/jongalloway/Handling-_2200_GO_2200_-Separators-in-SQL-Scripts- 2D00 -the-easy-way

样例代码:

public static void Main()    
{        
  string scriptDirectory = "c:\\temp\\sqltest\\";
  string sqlConnectionString = "Integrated Security=SSPI;" +
  "Persist Security Info=True;Initial Catalog=Northwind;Data Source=(local)";
  DirectoryInfo di = new DirectoryInfo(scriptDirectory);
  FileInfo[] rgFiles = di.GetFiles("*.sql");
  foreach (FileInfo fi in rgFiles)
  {
        FileInfo fileInfo = new FileInfo(fi.FullName);
        string script = fileInfo.OpenText().ReadToEnd();
        using (SqlConnection connection = new SqlConnection(sqlConnectionString))
        {
            Server server = new Server(new ServerConnection(connection));
            server.ConnectionContext.ExecuteNonQuery(script);
        }
   }
}

如果那对您不起作用,请参阅Phil Haack的库来处理该问题:http : //haacked.com/archive/2007/11/04/a-library-for-executing-sql-scripts-with-go-separators -和.aspx


2
如何将其与交易整合?使用SqlConnection创建ServerConnection时,该代码将引发InvalidOperationException,该服务器上具有待处理的事务。
benPearce's

1
此解决方案有效,我只想补充一下,如果您想将事务与一个TransactionScope对象一起使用,则只需将连接与当前环境事务进行连接即可。在这里检查我的答案:stackoverflow.com/a/18322938/1268570
Jupaol 2013年

效果很好,但是我们可以使用SqlConnection.InfoMessage)在C#应用程序中查看结果还是将结果保存在txt文件中,只是想知道脚本是否已成功执行,因为最近使用sqlcmd时,我在55分钟后在远程主机上执行了150 mb脚本文件行被这个错误影响,TCP Provider: An existing connection was forcibly closed by the remote host.communication link failure。,影响行数未知,但我担心运行数据库生成的脚本文件时会出现错误消息。
shaijut 2015年

5
当计算机上未安装某些SQL Dll时,此解决方案导致您的代码失败。.NET使用Windows内置的某些dll。缺少某些SQL功能包(包括管理对象)可能会阻止未发现类似“ Microsoft.SqlServer.SqlClrProvider.dll”的错误。修复它(这不容易),下一个错误将是“ Microsoft.SqlServer.BathParser.dll”等。找到其他解决方案以确保您的应用程序具有灵活性。
亚历山大·萨格森

35

这就是我共同解决我眼前的问题的方法。

private void ExecuteBatchNonQuery(string sql, SqlConnection conn) {
    string sqlBatch = string.Empty;
    SqlCommand cmd = new SqlCommand(string.Empty, conn);
    conn.Open();
    sql += "\nGO";   // make sure last batch is executed.
    try {
        foreach (string line in sql.Split(new string[2] { "\n", "\r" }, StringSplitOptions.RemoveEmptyEntries)) {
            if (line.ToUpperInvariant().Trim() == "GO") {
                cmd.CommandText = sqlBatch;
                cmd.ExecuteNonQuery();
                sqlBatch = string.Empty;
            } else {
                sqlBatch += line + "\n";
            }
        }            
    } finally {
        conn.Close();
    }
}

它要求GO命令位于其自己的行上,并且不会检测到块注释,因此这种事情将被拆分,并导致错误:

ExecuteBatchNonQuery(@"
    /*
    GO
    */", conn);

很高兴我可以根据需要轻松地将其适应SqlCe -其他代码使用Sql连接类和命令。
Blue Toque 2012年

我想使用包含多个存储过程的SQL脚本运行此代码,但是我有点困惑,它在哪里读取SQL?当您提到“最后一批”时,您是指SQL代码吗?如果是这样,您将如何确定最后一批?如果我想运行所有批次而不仅仅是最后一批,该怎么办?我知道的问题太多,但是如果您有时间回答,谢谢。
user1676874 2013年

您将SQL作为字符串传递给函数:string sql-这就是整个脚本。当我提到“批处理”时,是指两个“ GO”语句之间的一部分SQL代码。该代码GO在脚本的末尾添加了一个,这样,foreach如果您未使用结束脚本,则其中的代码将不会跳过最后一批GO。因此,编写的代码将执行所有SQL。
Blorgbeard将于

我创建了一个扩展方法:内部静态类SqlCommandHelper {内部静态void ExecuteBatchNonQuery(此SqlCommand cmd,字符串sql)
Rob Sedgwick

1
如果您想提高效率,可以使用StringBuilder sqlBatch
2015年

11

您可以使用SQL管理对象来执行此操作。这些是Management Studio用于执行查询的对象。相信Server.ConnectionContext.ExecuteNonQuery()会满足您的需求。


6

SQL Management Studio本身实际上使用了“ GO”批处理分隔符关键字,因此它知道在何处终止要发送给服务器的批处理,并且不会传递给SQL Server。如果需要,您甚至可以在Management Studio中更改关键字。


5

最后我看了几次,决定采用EF实现SqlConnection

public static void ExecuteSqlScript(this SqlConnection sqlConnection, string sqlBatch)
        {
            // Handle backslash utility statement (see http://technet.microsoft.com/en-us/library/dd207007.aspx)
            sqlBatch = Regex.Replace(sqlBatch, @"\\(\r\n|\r|\n)", string.Empty);

            // Handle batch splitting utility statement (see http://technet.microsoft.com/en-us/library/ms188037.aspx)
            var batches = Regex.Split(
                sqlBatch,
                string.Format(CultureInfo.InvariantCulture, @"^\s*({0}[ \t]+[0-9]+|{0})(?:\s+|$)", BatchTerminator),
                RegexOptions.IgnoreCase | RegexOptions.Multiline);

            for (int i = 0; i < batches.Length; ++i)
            {
                // Skip batches that merely contain the batch terminator
                if (batches[i].StartsWith(BatchTerminator, StringComparison.OrdinalIgnoreCase) ||
                    (i == batches.Length - 1 && string.IsNullOrWhiteSpace(batches[i])))
                {
                    continue;
                }

                // Include batch terminator if the next element is a batch terminator
                if (batches.Length > i + 1 &&
                    batches[i + 1].StartsWith(BatchTerminator, StringComparison.OrdinalIgnoreCase))
                {
                    int repeatCount = 1;

                    // Handle count parameter on the batch splitting utility statement
                    if (!string.Equals(batches[i + 1], BatchTerminator, StringComparison.OrdinalIgnoreCase))
                    {
                        repeatCount = int.Parse(Regex.Match(batches[i + 1], @"([0-9]+)").Value, CultureInfo.InvariantCulture);
                    }

                    for (int j = 0; j < repeatCount; ++j)
                    {
                       var command = sqlConnection.CreateCommand();
                       command.CommandText = batches[i];
                       command.ExecuteNonQuery();
                    }
                }
                else
                {
                    var command = sqlConnection.CreateCommand();
                    command.CommandText = batches[i];
                    command.ExecuteNonQuery();
                }
            }
        }

谢谢@Filip Cordas。尽管这没有被标记为答案,但这却使我像一个魅力!我们有大量的脚本,其中提到了BatchTerminator的不同方式,例如大写和小写(go,Go,GO等)的组合,并且最大时间带有尾随或前导空格,这导致通过c#执行的大问题... 。 谢谢 !!
DipakRiswadkar '19

2
@DipakRiswadkar是的,几次锁定此问题,但没有提供的答案可以满足我的需要,因此在EF实施方面看起来不错,所以我发布了答案。
Filip Cordas

很棒的答案,它就像一种魅力,非常感谢
cuongle

@Really也应将其报告给实体框架团队。正如我所说的,这只是过去的复制品,几乎没有做任何修改。
Filip Cordas


4

基于Blorgbeard的解决方案。

foreach (var sqlBatch in commandText.Split(new[] { "GO" }, StringSplitOptions.RemoveEmptyEntries))
{
   sqlCommand.CommandText = sqlBatch;
   sqlCommand.ExecuteNonQuery();
}

3
new [] {“ GO”,“ Go”,“ go”}
Andrew Veriga

1
new [] {“ GO”,“ Go”,“ go”,“ gO”}
布兰登·沃德

只要您对代码中的两个字母(如GOTO语句或注释)没有其他用途,就可以使用。
Patrik'3

3

例如,如果您不想使用SMO,因为您需要跨平台,则还可以使用SubText中的ScriptSplitter类。

这是 C#和VB.NET中的实现

用法:

    string strSQL = @"
SELECT * FROM INFORMATION_SCHEMA.columns
GO
SELECT * FROM INFORMATION_SCHEMA.views
";

    foreach(string Script in new Subtext.Scripting.ScriptSplitter(strSQL ))
    {
        Console.WriteLine(Script);
    }

如果您对多行c样式注释有疑问,请使用正则表达式删除注释:

static string RemoveCstyleComments(string strInput)
{
    string strPattern = @"/[*][\w\d\s]+[*]/";
    //strPattern = @"/\*.*?\*/"; // Doesn't work
    //strPattern = "/\\*.*?\\*/"; // Doesn't work
    //strPattern = @"/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+/ "; // Doesn't work
    //strPattern = @"/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+/ "; // Doesn't work

    // http://stackoverflow.com/questions/462843/improving-fixing-a-regex-for-c-style-block-comments
    strPattern = @"/\*(?>(?:(?>[^*]+)|\*(?!/))*)\*/";  // Works !

    string strOutput = System.Text.RegularExpressions.Regex.Replace(strInput, strPattern, string.Empty, System.Text.RegularExpressions.RegexOptions.Multiline);
    Console.WriteLine(strOutput);
    return strOutput;
} // End Function RemoveCstyleComments

在此处删除单行注释:

https://stackoverflow.com/questions/9842991/regex-to-remove-single-line-sql-comments

这个班级会考虑/* Go */情况吗?
edgarmtze 2015年

@cMinor:不在拆分器中,但是您可以在拆分前使用正则表达式删除多行注释。
Stefan Steiger

2

我也面临同样的问题,除了将单个SQL操作拆分为单独的文件,然后依次执行所有其他操作外,我找不到其他任何方法。

显然问题不在于DML命令列表,它们可以在之间没有GO的情况下执行;与DDL不同的故事(创建,更改,删除...)


2

如果您不想走SMO路线,可以搜索并将“ GO”替换为“;”。和查询一样。请注意,最后将返回最后一个结果集。


1
他们正在执行ExecuteNonQuery。到目前为止,这是更简单的方法。
DaveMorganTexas

3
使用“ GO”将允许您在批处理中的下一个命令中再次定义相同的变量。放置分号不会这样做。
DDRider62 '16

2

今天,我通过将SQL从文本文件加载到一个字符串中来完成此任务。然后,我使用字符串分割功能将字符串分成单独的命令,然后分别发送到服务器。简单:)

刚刚意识到,您需要对\ nGO进行拆分,以防万一字母GO出现在您的任何表名中,等等。


2

如果您不想使用SMO(比下面的解决方案更好,但是我想提供一个替代方案...),则可以使用此函数拆分查询。

它是:

  • 注释证明(例如--GO或/ * GO * /)
  • 只能在新行中使用,就像在SSMS中一样(示例/ *测试/ * GO有效,而选择1则不行
  • 字符串证明(示例打印“ no go”)

    private List<string> SplitScriptGo(string script)
    {
        var result = new List<string>();
        int pos1 = 0;
        int pos2 = 0;
        bool whiteSpace = true;
        bool emptyLine = true;
        bool inStr = false;
        bool inComment1 = false;
        bool inComment2 = false;
    
        while (true)
        {
            while (pos2 < script.Length && Char.IsWhiteSpace(script[pos2]))
            {
                if (script[pos2] == '\r' || script[pos2] == '\n')
                {
                    emptyLine = true;
                    inComment1 = false;
                }
    
                pos2++;
            }
    
            if (pos2 == script.Length)
                break;
    
            bool min2 = (pos2 + 1) < script.Length;
            bool min3 = (pos2 + 2) < script.Length;
    
            if (!inStr && !inComment2 && min2 && script.Substring(pos2, 2) == "--")
                inComment1 = true;
    
            if (!inStr && !inComment1 && min2 && script.Substring(pos2, 2) == "/*")
                inComment2 = true;
    
            if (!inComment1 && !inComment2 && script[pos2] == '\'')
                inStr = !inStr;
    
            if (!inStr && !inComment1 && !inComment2 && emptyLine
                && (min2 && script.Substring(pos2, 2).ToLower() == "go")
                && (!min3 || char.IsWhiteSpace(script[pos2 + 2]) || script.Substring(pos2 + 2, 2) == "--" || script.Substring(pos2 + 2, 2) == "/*"))
            {
                if (!whiteSpace)
                    result.Add(script.Substring(pos1, pos2 - pos1));
    
                whiteSpace = true;
                emptyLine = false;
                pos2 += 2;
                pos1 = pos2;
            }
            else
            {
                pos2++;
                whiteSpace = false;
    
                if (!inComment2)
                    emptyLine = false;
            }
    
            if (!inStr && inComment2 && pos2 > 1 && script.Substring(pos2 - 2, 2) == "*/")
                inComment2 = false;
        }
    
        if (!whiteSpace)
            result.Add(script.Substring(pos1));
    
        return result;
    }

1

使用以下方法分割字符串并逐批执行

using System;
using System.IO;
using System.Text.RegularExpressions;
namespace RegExTrial
{
    class Program
    {
        static void Main(string[] args)
        {
            string sql = String.Empty;
            string path=@"D:\temp\sample.sql";
            using (StreamReader reader = new StreamReader(path)) {
                sql = reader.ReadToEnd();
            }            
            //Select any GO (ignore case) that starts with at least 
            //one white space such as tab, space,new line, verticle tab etc
            string pattern="[\\s](?i)GO(?-i)";

            Regex matcher = new Regex(pattern, RegexOptions.Compiled);
            int start = 0;
            int end = 0;
            Match batch=matcher.Match(sql);
            while (batch.Success) {
                end = batch.Index;
                string batchQuery = sql.Substring(start, end - start).Trim();
                //execute the batch
                ExecuteBatch(batchQuery);
                start = end + batch.Length;
                batch = matcher.Match(sql,start);
            }

        }

        private static void ExecuteBatch(string command)
        { 
            //execute your query here
        }

    }
}

1

为了避免第三方,正则表达式,内存开销以及大型脚本的快速工作,我创建了自己的基于流的解析器。它

  • 之前检查语法
  • 可以使用-或/ ** /识别注释

    -- some commented text
     /*
    drop table Users;
    GO
       */
  • 可以识别带有'或'的字符串文字

    set @s =
        'create table foo(...);
        GO
        create index ...';
  • 保留LF和CR格式
  • 在对象主体中保留注释块(存储过程,视图等)
  • 和其他结构,例如

          gO -- commented text

如何使用

    try
    {
        using (SqlConnection connection = new SqlConnection("Integrated Security=SSPI;Persist Security Info=True;Initial Catalog=DATABASE-NAME;Data Source=SERVER-NAME"))
        {
            connection.Open();

            int rowsAffected = SqlStatementReader.ExecuteSqlFile(
                "C:\\target-sql-script.sql",
                connection,
                // Don't forget to use the correct file encoding!!!
                Encoding.Default,
                // Indefinitely (sec)
                0
            );
        }
    }
    // implement your handlers
    catch (SqlStatementReader.SqlBadSyntaxException) { }
    catch (SqlException) { }
    catch (Exception) { }

基于流的SQL脚本阅读器

class SqlStatementReader
{
    public class SqlBadSyntaxException : Exception
    {
        public SqlBadSyntaxException(string description) : base(description) { }
        public SqlBadSyntaxException(string description, int line) : base(OnBase(description, line, null)) { }
        public SqlBadSyntaxException(string description, int line, string filePath) : base(OnBase(description, line, filePath)) { }
        private static string OnBase(string description, int line, string filePath)
        {
            if (filePath == null)
                return string.Format("Line: {0}. {1}", line, description);
            else
                return string.Format("File: {0}\r\nLine: {1}. {2}", filePath, line, description);
        }
    }

    enum SqlScriptChunkTypes
    {
        InstructionOrUnquotedIdentifier = 0,
        BracketIdentifier = 1,
        QuotIdentifierOrLiteral = 2,
        DblQuotIdentifierOrLiteral = 3,
        CommentLine = 4,
        CommentMultiline = 5,
    }

    StreamReader _sr = null;
    string _filePath = null;
    int _lineStart = 1;
    int _lineEnd = 1;
    bool _isNextChar = false;
    char _nextChar = '\0';

    public SqlStatementReader(StreamReader sr)
    {
        if (sr == null)
            throw new ArgumentNullException("StreamReader can't be null.");

        if (sr.BaseStream is FileStream)
            _filePath = ((FileStream)sr.BaseStream).Name;

        _sr = sr;
    }

    public SqlStatementReader(StreamReader sr, string filePath)
    {
        if (sr == null)
            throw new ArgumentNullException("StreamReader can't be null.");

        _sr = sr;
        _filePath = filePath;
    }

    public int LineStart { get { return _lineStart; } }
    public int LineEnd { get { return _lineEnd == 1 ? _lineEnd : _lineEnd - 1; } }

    public void LightSyntaxCheck()
    {
        while (ReadStatementInternal(true) != null) ;
    }

    public string ReadStatement()
    {
        for (string s = ReadStatementInternal(false); s != null; s = ReadStatementInternal(false))
        {
            // skip empty
            for (int i = 0; i < s.Length; i++)
            {
                switch (s[i])
                {
                    case ' ': continue;
                    case '\t': continue;
                    case '\r': continue;
                    case '\n': continue;
                    default:
                        return s;
                }
            }
        }
        return null;
    }

    string ReadStatementInternal(bool syntaxCheck)
    {
        if (_isNextChar == false && _sr.EndOfStream)
            return null;

        StringBuilder allLines = new StringBuilder();
        StringBuilder line = new StringBuilder();
        SqlScriptChunkTypes nextChunk = SqlScriptChunkTypes.InstructionOrUnquotedIdentifier;
        SqlScriptChunkTypes currentChunk = SqlScriptChunkTypes.InstructionOrUnquotedIdentifier;
        char ch = '\0';
        int lineCounter = 0;
        int nextLine = 0;
        int currentLine = 0;
        bool nextCharHandled = false;
        bool foundGO;
        int go = 1;

        while (ReadChar(out ch))
        {
            if (nextCharHandled == false)
            {
                currentChunk = nextChunk;
                currentLine = nextLine;

                switch (currentChunk)
                {
                    case SqlScriptChunkTypes.InstructionOrUnquotedIdentifier:

                        if (ch == '[')
                        {
                            currentChunk = nextChunk = SqlScriptChunkTypes.BracketIdentifier;
                            currentLine = nextLine = lineCounter;
                        }
                        else if (ch == '"')
                        {
                            currentChunk = nextChunk = SqlScriptChunkTypes.DblQuotIdentifierOrLiteral;
                            currentLine = nextLine = lineCounter;
                        }
                        else if (ch == '\'')
                        {
                            currentChunk = nextChunk = SqlScriptChunkTypes.QuotIdentifierOrLiteral;
                            currentLine = nextLine = lineCounter;
                        }
                        else if (ch == '-' && (_isNextChar && _nextChar == '-'))
                        {
                            nextCharHandled = true;
                            currentChunk = nextChunk = SqlScriptChunkTypes.CommentLine;
                            currentLine = nextLine = lineCounter;
                        }
                        else if (ch == '/' && (_isNextChar && _nextChar == '*'))
                        {
                            nextCharHandled = true;
                            currentChunk = nextChunk = SqlScriptChunkTypes.CommentMultiline;
                            currentLine = nextLine = lineCounter;
                        }
                        else if (ch == ']')
                        {
                            throw new SqlBadSyntaxException("Incorrect syntax near ']'.", _lineEnd + lineCounter, _filePath);
                        }
                        else if (ch == '*' && (_isNextChar && _nextChar == '/'))
                        {
                            throw new SqlBadSyntaxException("Incorrect syntax near '*'.", _lineEnd + lineCounter, _filePath);
                        }
                        break;

                    case SqlScriptChunkTypes.CommentLine:

                        if (ch == '\r' && (_isNextChar && _nextChar == '\n'))
                        {
                            nextCharHandled = true;
                            currentChunk = nextChunk = SqlScriptChunkTypes.InstructionOrUnquotedIdentifier;
                            currentLine = nextLine = lineCounter;
                        }
                        else if (ch == '\n' || ch == '\r')
                        {
                            currentChunk = nextChunk = SqlScriptChunkTypes.InstructionOrUnquotedIdentifier;
                            currentLine = nextLine = lineCounter;
                        }
                        break;

                    case SqlScriptChunkTypes.CommentMultiline:

                        if (ch == '*' && (_isNextChar && _nextChar == '/'))
                        {
                            nextCharHandled = true;
                            nextChunk = SqlScriptChunkTypes.InstructionOrUnquotedIdentifier;
                            nextLine = lineCounter;
                        }
                        else if (ch == '/' && (_isNextChar && _nextChar == '*'))
                        {
                            throw new SqlBadSyntaxException("Missing end comment mark '*/'.", _lineEnd + currentLine, _filePath);
                        }
                        break;

                    case SqlScriptChunkTypes.BracketIdentifier:

                        if (ch == ']')
                        {
                            nextChunk = SqlScriptChunkTypes.InstructionOrUnquotedIdentifier;
                            nextLine = lineCounter;
                        }
                        break;

                    case SqlScriptChunkTypes.DblQuotIdentifierOrLiteral:

                        if (ch == '"')
                        {
                            if (_isNextChar && _nextChar == '"')
                            {
                                nextCharHandled = true;
                            }
                            else
                            {
                                nextChunk = SqlScriptChunkTypes.InstructionOrUnquotedIdentifier;
                                nextLine = lineCounter;
                            }
                        }
                        break;

                    case SqlScriptChunkTypes.QuotIdentifierOrLiteral:

                        if (ch == '\'')
                        {
                            if (_isNextChar && _nextChar == '\'')
                            {
                                nextCharHandled = true;
                            }
                            else
                            {
                                nextChunk = SqlScriptChunkTypes.InstructionOrUnquotedIdentifier;
                                nextLine = lineCounter;
                            }
                        }
                        break;
                }
            }
            else
                nextCharHandled = false;

            foundGO = false;
            if (currentChunk == SqlScriptChunkTypes.InstructionOrUnquotedIdentifier || go >= 5 || (go == 4 && currentChunk == SqlScriptChunkTypes.CommentLine))
            {
                // go = 0 - break, 1 - begin of the string, 2 - spaces after begin of the string, 3 - G or g, 4 - O or o, 5 - spaces after GO, 6 - line comment after valid GO
                switch (go)
                {
                    case 0:
                        if (ch == '\r' || ch == '\n')
                            go = 1;
                        break;
                    case 1:
                        if (ch == ' ' || ch == '\t')
                            go = 2;
                        else if (ch == 'G' || ch == 'g')
                            go = 3;
                        else if (ch != '\n' && ch != '\r')
                            go = 0;
                        break;
                    case 2:
                        if (ch == 'G' || ch == 'g')
                            go = 3;
                        else if (ch == '\n' || ch == '\r')
                            go = 1;
                        else if (ch != ' ' && ch != '\t')
                            go = 0;
                        break;
                    case 3:
                        if (ch == 'O' || ch == 'o')
                            go = 4;
                        else if (ch == '\n' || ch == '\r')
                            go = 1;
                        else
                            go = 0;
                        break;
                    case 4:
                        if (ch == '\r' && (_isNextChar && _nextChar == '\n'))
                            go = 5;
                        else if (ch == '\n' || ch == '\r')
                            foundGO = true;
                        else if (ch == ' ' || ch == '\t')
                            go = 5;
                        else if (ch == '-' && (_isNextChar && _nextChar == '-'))
                            go = 6;
                        else
                            go = 0;
                        break;
                    case 5:
                        if (ch == '\r' && (_isNextChar && _nextChar == '\n'))
                            go = 5;
                        else if (ch == '\n' || ch == '\r')
                            foundGO = true;
                        else if (ch == '-' && (_isNextChar && _nextChar == '-'))
                            go = 6;
                        else if (ch != ' ' && ch != '\t')
                            throw new SqlBadSyntaxException("Incorrect syntax was encountered while parsing go.", _lineEnd + lineCounter, _filePath);
                        break;
                    case 6:
                        if (ch == '\r' && (_isNextChar && _nextChar == '\n'))
                            go = 6;
                        else if (ch == '\n' || ch == '\r')
                            foundGO = true;
                        break;
                    default:
                        go = 0;
                        break;
                }
            }
            else
                go = 0;

            if (foundGO)
            {
                if (ch == '\r' || ch == '\n')
                {
                    ++lineCounter;
                }
                // clear GO
                string s = line.Append(ch).ToString();
                for (int i = 0; i < s.Length; i++)
                {
                    switch (s[i])
                    {
                        case ' ': continue;
                        case '\t': continue;
                        case '\r': continue;
                        case '\n': continue;
                        default:
                            _lineStart = _lineEnd;
                            _lineEnd += lineCounter;
                            return allLines.Append(s.Substring(0, i)).ToString();
                    }
                }
                return string.Empty;
            }

            // accumulate by string
            if (ch == '\r' && (_isNextChar == false || _nextChar != '\n'))
            {
                ++lineCounter;
                if (syntaxCheck == false)
                    allLines.Append(line.Append('\r').ToString());
                line.Clear();
            }
            else if (ch == '\n')
            {
                ++lineCounter;
                if (syntaxCheck == false)
                    allLines.Append(line.Append('\n').ToString());
                line.Clear();
            }
            else
            {
                if (syntaxCheck == false)
                    line.Append(ch);
            }
        }

        // this is the end of the stream, return it without GO, if GO exists
        switch (currentChunk)
        {
            case SqlScriptChunkTypes.InstructionOrUnquotedIdentifier:
            case SqlScriptChunkTypes.CommentLine:
                break;
            case SqlScriptChunkTypes.CommentMultiline:
                if (nextChunk != SqlScriptChunkTypes.InstructionOrUnquotedIdentifier)
                    throw new SqlBadSyntaxException("Missing end comment mark '*/'.", _lineEnd + currentLine, _filePath);
                break;
            case SqlScriptChunkTypes.BracketIdentifier:
                if (nextChunk != SqlScriptChunkTypes.InstructionOrUnquotedIdentifier)
                    throw new SqlBadSyntaxException("Unclosed quotation mark [.", _lineEnd + currentLine, _filePath);
                break;
            case SqlScriptChunkTypes.DblQuotIdentifierOrLiteral:
                if (nextChunk != SqlScriptChunkTypes.InstructionOrUnquotedIdentifier)
                    throw new SqlBadSyntaxException("Unclosed quotation mark \".", _lineEnd + currentLine, _filePath);
                break;
            case SqlScriptChunkTypes.QuotIdentifierOrLiteral:
                if (nextChunk != SqlScriptChunkTypes.InstructionOrUnquotedIdentifier)
                    throw new SqlBadSyntaxException("Unclosed quotation mark '.", _lineEnd + currentLine, _filePath);
                break;
        }

        if (go >= 4)
        {
            string s = line.ToString();
            for (int i = 0; i < s.Length; i++)
            {
                switch (s[i])
                {
                    case ' ': continue;
                    case '\t': continue;
                    case '\r': continue;
                    case '\n': continue;
                    default:
                        _lineStart = _lineEnd;
                        _lineEnd += lineCounter + 1;
                        return allLines.Append(s.Substring(0, i)).ToString();
                }
            }
        }

        _lineStart = _lineEnd;
        _lineEnd += lineCounter + 1;
        return allLines.Append(line.ToString()).ToString();
    }

    bool ReadChar(out char ch)
    {
        if (_isNextChar)
        {
            ch = _nextChar;
            if (_sr.EndOfStream)
                _isNextChar = false;
            else
                _nextChar = Convert.ToChar(_sr.Read());
            return true;
        }
        else if (_sr.EndOfStream == false)
        {
            ch = Convert.ToChar(_sr.Read());
            if (_sr.EndOfStream == false)
            {
                _isNextChar = true;
                _nextChar = Convert.ToChar(_sr.Read());
            }
            return true;
        }
        else
        {
            ch = '\0';
            return false;
        }
    }

    public static int ExecuteSqlFile(string filePath, SqlConnection connection, Encoding fileEncoding, int commandTimeout)
    {
        int rowsAffected = 0;
        using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
        {
            // Simple syntax check (you can comment out these two lines below)
            new SqlStatementReader(new StreamReader(fs, fileEncoding)).LightSyntaxCheck();
            fs.Seek(0L, SeekOrigin.Begin);

            // Read statements without GO
            SqlStatementReader rd = new SqlStatementReader(new StreamReader(fs, fileEncoding));
            string stmt;
            while ((stmt = rd.ReadStatement()) != null)
            {
                using (SqlCommand cmd = connection.CreateCommand())
                {
                    cmd.CommandText = stmt;
                    cmd.CommandTimeout = commandTimeout;
                    int i = cmd.ExecuteNonQuery();
                    if (i > 0)
                        rowsAffected += i;
                }
            }
        }
        return rowsAffected;
    }
}

0

我在Java中遇到了同样的问题,并通过一些逻辑和正则表达式解决了它。我相信可以应用相同的逻辑。首先,我从slq文件读取到内存中。然后,我应用以下逻辑。几乎已经说过了,但是我相信使用正则表达式单词绑定比期望换行符更安全。

String pattern = "\\bGO\\b|\\bgo\\b";

String[] splitedSql = sql.split(pattern);
for (String chunk : splitedSql) {
  getJdbcTemplate().update(chunk);
}

这基本上将sql字符串拆分为sql字符串数组。正则表达式基本上是检测小写或大写的完整“开始”单词。然后,您依次执行不同的查询。


1
小心:您将如何拆分?insert into books values ('1478355824', 'An Introduction To Programming in Go (paperback)', 9.00)
Blorgbeard在

好点:-)我的情况没有插入数据。只是创建表,存储过程和函数。在我的特定情况下,“绑定”一词更为有用,因为它在最后一行也处理了“ go”。
jbrunodomingues 2014年

0

我遇到了同样的问题,最终只是通过简单的字符串替换(用分号(;)代替了单词GO)解决了该问题。

在执行带有内联注释,块注释和GO命令的脚本时,一切似乎都工作正常

public static bool ExecuteExternalScript(string filePath)
{
    using (StreamReader file = new StreamReader(filePath))
    using (SqlConnection conn = new SqlConnection(dbConnStr))
    {
        StringBuilder sql = new StringBuilder();

        string line;
        while ((line = file.ReadLine()) != null)
        {
            // replace GO with semi-colon
            if (line == "GO")
                sql.Append(";");
            // remove inline comments
            else if (line.IndexOf("--") > -1)
                sql.AppendFormat(" {0} ", line.Split(new string[] { "--" }, StringSplitOptions.None)[0]);
            // just the line as it is
            else
                sql.AppendFormat(" {0} ", line);
        }
        conn.Open();

        SqlCommand cmd = new SqlCommand(sql.ToString(), conn);
        cmd.ExecuteNonQuery();
    }

    return true;
}

1
它不适用于DDL命令,而DDL命令必须成批处理。例如,create / alter table等
Blorgbeard发布时间为

另外,您似乎无缘无故地删除了注释。--例如,这会破坏任何包含的字符串。
Blorgbeard在

嗨,Blorgbeard-SQL Server 2012似乎正在处理DDL语句,确定。我使用的脚本是允许我重建整个数据库结构,擦除当前结构,构建表,添加索引等。还完成了一批?
Morvael 2015年

同样,删除注释是因为这将产生一行SQL,因此注释之后的任何SQL都将被注释掉,但是如果包含的字符串不是注释,我请您注意。
Morvael 2015年

1
好的,只是查了一下:“创建默认值,创建功能,创建过程,创建规则,创建模式,创建触发器和创建视图语句不能与批处理中的其他语句组合。CREATE语句必须启动该批处理。所有该批处理中随后的其他语句将被解释为第一个CREATE语句的定义的一部分。不能更改表,然后不能更改同一批处理中引用的新列。”
Blorgbeard将于

-1

对于仍然有问题的任何人。您可以使用官方的Microsoft SMO

https://docs.microsoft.com/zh-cn/sql/relational-databases/server-management-objects-smo/overview-smo?view=sql-server-2017

using (var connection = new SqlConnection(connectionString))
{
  var server = new Server(new ServerConnection(connection));
  server.ConnectionContext.ExecuteNonQuery(sql);
}

这并没有在最高票数,已接受的答案上添加任何内容,也暗示了SMO(发布于10年前!)。
Blorgbeard在

-4

太难了 :)

创建字符串数组str []将GO替换为“,@”:

            string[] str ={
                @"
USE master;
",@"


CREATE DATABASE " +con_str_initdir+ @";
",@"
-- Verify the database files and sizes
--SELECT name, size, size*1.0/128 AS [Size in MBs] 
--SELECT name 
--FROM sys.master_files
--WHERE name = N'" + con_str_initdir + @"';
--GO

USE " + con_str_initdir + @";
",@"

SET ANSI_NULLS ON
",@"
SET QUOTED_IDENTIFIER ON
",@"

IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[Customers]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[Customers](
    [CustomerID] [int] IDENTITY(1,1) NOT NULL,
    [CustomerName] [nvarchar](50) NULL,
 CONSTRAINT [PK_Customers] PRIMARY KEY CLUSTERED 
(
    [CustomerID] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END
",@"



SET ANSI_NULLS ON
",@"
SET QUOTED_IDENTIFIER ON
",@"
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[GOODS]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[GOODS](
    [GoodsID] [int] IDENTITY(1,1) NOT NULL,
    [GoodsName] [nvarchar](50) NOT NULL,
    [GoodsPrice] [float] NOT NULL,
 CONSTRAINT [PK_GOODS] PRIMARY KEY CLUSTERED 
(
    [GoodsID] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END
",@"
SET ANSI_NULLS ON
",@"
SET QUOTED_IDENTIFIER ON
",@"
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[Orders]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[Orders](
    [OrderID] [int] IDENTITY(1,1) NOT NULL,
    [CustomerID] [int] NOT NULL,
    [Date] [smalldatetime] NOT NULL,
 CONSTRAINT [PK_Orders] PRIMARY KEY CLUSTERED 
(
    [OrderID] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END
",@"
SET ANSI_NULLS ON
",@"
SET QUOTED_IDENTIFIER ON
",@"
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[OrderDetails]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[OrderDetails](
    [OrderID] [int] NOT NULL,
    [GoodsID] [int] NOT NULL,
    [Qty] [int] NOT NULL,
    [Price] [float] NOT NULL,
 CONSTRAINT [PK_OrderDetails] PRIMARY KEY CLUSTERED 
(
    [OrderID] ASC,
    [GoodsID] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END
",@"

SET ANSI_NULLS ON
",@"
SET QUOTED_IDENTIFIER ON
",@"
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[InsertCustomers]') AND type in (N'P', N'PC'))
BEGIN
EXEC dbo.sp_executesql @statement = N'-- =============================================
-- Author:      <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
create PROCEDURE [dbo].[InsertCustomers]
 @CustomerName nvarchar(50),
 @Identity int OUT
AS
INSERT INTO Customers (CustomerName) VALUES(@CustomerName)
SET @Identity = SCOPE_IDENTITY()

' 
END
",@"
IF NOT EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = OBJECT_ID(N'[dbo].[FK_Orders_Customers]') AND parent_object_id = OBJECT_ID(N'[dbo].[Orders]'))
ALTER TABLE [dbo].[Orders]  WITH CHECK ADD  CONSTRAINT [FK_Orders_Customers] FOREIGN KEY([CustomerID])
REFERENCES [dbo].[Customers] ([CustomerID])
ON UPDATE CASCADE
",@"
ALTER TABLE [dbo].[Orders] CHECK CONSTRAINT [FK_Orders_Customers]
",@"
IF NOT EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = OBJECT_ID(N'[dbo].[FK_OrderDetails_GOODS]') AND parent_object_id = OBJECT_ID(N'[dbo].[OrderDetails]'))
ALTER TABLE [dbo].[OrderDetails]  WITH CHECK ADD  CONSTRAINT [FK_OrderDetails_GOODS] FOREIGN KEY([GoodsID])
REFERENCES [dbo].[GOODS] ([GoodsID])
ON UPDATE CASCADE
",@"
ALTER TABLE [dbo].[OrderDetails] CHECK CONSTRAINT [FK_OrderDetails_GOODS]
",@"
IF NOT EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = OBJECT_ID(N'[dbo].[FK_OrderDetails_Orders]') AND parent_object_id = OBJECT_ID(N'[dbo].[OrderDetails]'))
ALTER TABLE [dbo].[OrderDetails]  WITH CHECK ADD  CONSTRAINT [FK_OrderDetails_Orders] FOREIGN KEY([OrderID])
REFERENCES [dbo].[Orders] ([OrderID])
ON UPDATE CASCADE
ON DELETE CASCADE
",@"
ALTER TABLE [dbo].[OrderDetails] CHECK CONSTRAINT [FK_OrderDetails_Orders]


                "};


            for(int i =0; i<str.Length;i++)     
            {
                myCommand.CommandText=str[i];
                try
                {
                myCommand.ExecuteNonQuery();
                }
                catch (SystemException ee)
                {
                    MessageBox.Show("Error   "+ee.ToString());
                }

            }

就这样,享受。

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