将exec sp_executesql转换为普通查询的简单方法?

http://execsqlformat.herokuapp.com/

样本输入:

exec sp_executesql 
          N'SELECT * FROM AdventureWorks.HumanResources.Employee 
          WHERE ManagerID = @level',
          N'@level tinyint',
          @level = 109;

BEGIN
DECLARE @level tinyint;

SET @level = 109;

SELECT * FROM AdventureWorks.HumanResources.Employee  
          WHERE ManagerID = @level
END

http://sqlformat.appspot.com

.NET Fiddle download LINQPad 5 file

输入:

exec sp_executesql N'UPDATE MyTable SET [Field1] = @0, [Field2] = @1',N'@0 nvarchar(max) ,@1 int',@0=N'String',@1=0

UPDATE MyTable SET [Field1] = N'String', [Field2] = 0

代码:

using System;
using System.Linq;
using System.Text.RegularExpressions;

public class Program
{
    public static void Main()
    {
        var sql = @"exec sp_executesql N'UPDATE MyTable SET [Field1] = @0, [Field2] = @1',N'@0 nvarchar(max) ,@1 int',@0=N'String',@1=0";
        Console.WriteLine(ConvertSql(sql));
    }

    public static string ConvertSql(string origSql)
    {
        var re = new Regex(@"exec*\s*sp_executesql\s+N'([\s\S]*)',\s*N'(@[\s\S]*?)',\s*([\s\S]*)", RegexOptions.IgnoreCase); // 1: the sql, 2: the declare, 3: the setting
        var match = re.Match(origSql);
        if (match.Success)
        {
            var sql = match.Groups[1].Value.Replace("''", "'");
            //var declare = match.Groups[2].Value;
            var setting = match.Groups[3].Value + ',';

            // to deal with comma or single quote in variable values, we can use the variable name to split
            var re2 = new Regex(@"@[^',]*?\s*=");
            var variables = re2.Matches(setting).Cast<Match>().Select(m => m.Value).ToArray();
            var values = re2.Split(setting).Where(s=>!string.IsNullOrWhiteSpace(s)).Select(m => m.Trim(',').Trim().Trim(';')).ToArray();

            for (int i = variables.Length-1; i>=0; i--)
            {
                sql = Regex.Replace(sql, "(" + variables[i].Replace("=", "")+")", values[i], RegexOptions.Singleline);
            }
            return sql;     
        }

        return @"Unknown sql query format.";
    }
}

void Main()
{
    ConvertSql(System.Windows.Forms.Clipboard.GetText()).Dump();
}

private static string ConvertSql(string origSql)
{
  string tmp = origSql.Replace("''", "~~");       
  string baseSql;
  string paramTypes;
  string paramData = "";
  int i0 = tmp.IndexOf("'") + 1;
  int i1 = tmp.IndexOf("'", i0);
  if (i1 > 0)
  {
      baseSql = tmp.Substring(i0, i1 - i0); 
      i0 = tmp.IndexOf("'", i1 + 1);
      i1 = tmp.IndexOf("'", i0 + 1);
      if (i0 > 0 && i1 > 0)
      {
          paramTypes = tmp.Substring(i0 + 1, i1 - i0 - 1);
          paramData = tmp.Substring(i1 + 1);
      }
  }
  else
  {
      throw new Exception("Cannot identify SQL statement in first parameter");
  }

  baseSql = baseSql.Replace("~~", "'");  
  if (!String.IsNullOrEmpty(paramData))  
  {
      string[] paramList = paramData.Split(",".ToCharArray());
      foreach (string paramValue in paramList)
      {
          int iEq = paramValue.IndexOf("=");
          if (iEq < 0)
              continue;
          string pName = paramValue.Substring(0, iEq).Trim();
          string pVal = paramValue.Substring(iEq + 1).Trim();
          baseSql = baseSql.ReplaceWholeWord(pName, pVal);
      }
  }

  return baseSql;
}

public static class StringExtensionsMethods
{
   /// <summary>
   /// Replaces the whole word.
   /// </summary>
   /// <param name="s">The s.</param>
   /// <param name="word">The word.</param>
   /// <param name="replacement">The replacement.</param>
   /// <returns>String.</returns>
   public static String ReplaceWholeWord(this String s, String word, String replacement)
   {
       var firstLetter = word[0];
       var sb = new StringBuilder();
       var previousWasLetterOrDigit = false;
       var i = 0;
       while (i < s.Length - word.Length + 1)
       {
           var wordFound = false;
           var c = s[i];
           if (c == firstLetter)
               if (!previousWasLetterOrDigit)
                   if (s.Substring(i, word.Length).Equals(word))
                   {
                       wordFound = true;
                       var wholeWordFound = true;
                       if (s.Length > i + word.Length)
                       {
                           if (Char.IsLetterOrDigit(s[i + word.Length]))
                               wholeWordFound = false;
                       }

                       sb.Append(wholeWordFound ? replacement : word);

                       i += word.Length;
                   }

           if (wordFound) continue;

           previousWasLetterOrDigit = Char.IsLetterOrDigit(c);
           sb.Append(c);
           i++;
       }

       if (s.Length - i > 0)
           sb.Append(s.Substring(i));

       return sb.ToString();
   }
}

https://code.msdn.microsoft.com/windowsdesktop/spExecuteSql-parser-1a9cd7bc

exec sp_executesql N'UPDATE Task SET Status = @p0, Updated = @p1 WHERE Id = @p2 AND Status = @p3 AND Updated = @p4',N'@p0 int,@p1 datetime,@p2 int,@p3 int,@p4 datetime',@p0=1,@p1='2015-02-07 21:36:30.313',@p2=173990,@p3=2,@p4='2015-02-07 21:35:32.830'

UPDATE Task SET Status = 1, Updated = '2015-02-07 21:36:30.313' WHERE Id = 173990 AND Status = 2 AND Updated = '2015-02-07 21:35:32.830'

这使得它更容易理解。

sp_executesql

为了提高可读性,还可以在该解决方案中添加SQL格式化程序:

http://www.nuget.org/packages/PoorMansTSQLFormatter/

newSql = ConvertSql(Clipboard.GetText());
var formattedSql = SqlFormattingManager.DefaultFormat(newSql);
Clipboard.SetText(formattedSql);

https://github.com/PejmanNik/sqlops-spexecutesql-to-sql/releases/tag/0.0.1

一些正则表达式和一些字符串连接,然后将其出售给Vinko和其他寻求此功能的人。

http://sqlblogcasts.com/blogs/jonsayce/archive/2008/01/15/building-a-sql-server-management-studio-addin.aspx

ClipboardSqlFormatter 这是一个托盘应用程序,它监听剪贴板输入事件,并尝试检测动态sql并将其转换为静态sql。

您需要做的就是复制动态sql(例如从sql分析器)并粘贴到文本编辑器中——粘贴的sql将是静态sql:)

例如,如果复制的sql是:

exec sp_executesql N' SELECT "obj"."CreateDateTime", "obj"."LastEditDateTime" FROM LDERC "doc" INNER JOIN LDObject "obj" ON ("doc"."ID" = "obj"."ID") LEFT OUTER JOIN LDJournal "ContainerID.jrn" ON ("doc"."JournalID" = "ContainerID.jrn"."ID") WHERE ( "doc"."ID" = @V0 AND ( "doc"."StateID" <> 5 AND "ContainerID.jrn"."Name" <> ''Hidden journal'' ) ) ',N'@V0 bigint',@V0=6815463'

SELECT "obj"."CreateDateTime" ,"obj"."LastEditDateTime" FROM LDERC "doc" INNER JOIN LDObject "obj" ON ("doc"."ID" = "obj"."ID") LEFT OUTER JOIN LDJournal "ContainerID.jrn" ON ("doc"."JournalID" = "ContainerID.jrn"."ID") WHERE ( "doc"."ID" = 6815463 AND ( "doc"."StateID" <> 5 AND "ContainerID.jrn"."Name" <> 'Hidden journal' ) )

结论:我注意到这仍然受到了一些关注,所以我将在这里添加详细信息,说明我最终的解决方案是什么。

每

class Program
{
    const string query = "query";
    const string decls = "decls";
    const string sets = "sets";
    static void Main(string[] args)
    {
        try
        {
            var text = File.ReadAllText(args[0]);
            if(string.IsNullOrEmpty(text))
            {
                Console.WriteLine("File is empty.  Try saving it before using the hillbilly sproc decoder");
            }
            var regex = new Regex(@"exec sp_executesql N'(?<" + query + ">.*)',N'(?<" + decls + ">[^']*)',(?<" + sets + ">.*)", RegexOptions.Singleline);
            var match = regex.Match(text);

            if(!match.Success || match.Groups.Count != 4)
            {
                Console.WriteLine("Didn't capture that one.  Shit.");
                Console.Read();
                return;
            }

            var sb = new StringBuilder();
            sb.Append("DECLARE ").AppendLine(match.Groups[decls].Value);
            foreach(var set in match.Groups[sets].Value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
                sb.Append("SET ").AppendLine(set);
            sb.AppendLine(match.Groups[query].Value.Replace("''", "'"));
            File.WriteAllText(args[0], sb.ToString());
        }
        catch(Exception ex)
        {
            Console.WriteLine("S*t blew up, yo");
            Console.WriteLine(ex.ToString());
            Console.WriteLine("Press a key to exit");
            Console.Read();
        }
    }
}