sqlserver 表中记录生成insert，可以加条件，可以生成建表语句

sqlserver 表中记录生成insert，可以加条件，可以生成建表语句

create PROCEDURE [sp_getinsert]
    (
      @tablename VARCHAR(256) , --如果非默认架构，可以加上架构名 例如：schema1.tablename
      @where VARCHAR(1000) = '',
      @create BIT =0
    )
AS
    BEGIN
        SET NOCOUNT ON;

        IF @create=1
        EXEC sp_gettext @name=@tablename,@identity=1,@index=2;

        DECLARE @sqlstr VARCHAR(max)= '';
        DECLARE @sqlstr1 VARCHAR(max);
        DECLARE @sqlstr2 VARCHAR(max) ,
            @HasIdentity BIT;       


        SET @HasIdentity = OBJECTPROPERTY(OBJECT_ID(@tablename),
                                          'TableHasIdentity');      

        IF ( @HasIdentity = 1 )
            SET @sqlstr = @sqlstr + ' select ''SET IDENTITY_INSERT '
                + @tablename + ' ON'' UNION ALL ' + CHAR(10); 
                  

        SELECT  @sqlstr = @sqlstr + 'select ''insert ' + @tablename;
        SELECT  @sqlstr1 = '';
        SELECT  @sqlstr2 = ' (';
        SELECT  @sqlstr1 = ' values ( ''+';
        SELECT  @sqlstr1 = @sqlstr1 + col + '+'',''+',
                @sqlstr2 = @sqlstr2 + QUOTENAME(name) + ','
        FROM    (
                  SELECT    CASE 
-- when a.xtype =173 then 'case when '+QUOTENAME(a.name)+' is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.length*2+2)+'),'+QUOTENAME(a.name) +')'+' end'
                                 WHEN a.xtype = 127
                                 THEN 'case when ' + QUOTENAME(a.name)+(CASE WHEN collation ='Chinese_PRC_CI_AS' THEN '' ELSE ' collate '+collation COLLATE DATABASE_DEFAULT end)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar(20),'
                                      + QUOTENAME(a.name) + ')' + ' end'
                                 WHEN a.xtype = 104
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar(1),'
                                      + QUOTENAME(a.name) + ')' + ' end'
                                 WHEN a.xtype = 175
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + '''''''''+' + 'replace('
                                      + QUOTENAME(a.name)
                                      + ','''''''','''''''''''')'
                                      + '+''''''''' + ' end'
                                 WHEN a.xtype = 61
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + '''''''''+' + 'convert(varchar(23),'
                                      + QUOTENAME(a.name) + ',121)'
                                      + '+''''''''' + ' end'
                                 WHEN a.xtype = 106
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar('
                                      + CONVERT(VARCHAR(4), a.xprec + 2)
                                      + '),' + QUOTENAME(a.name) + ')'
                                      + ' end'
                                 WHEN a.xtype = 62
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar(23),'
                                      + QUOTENAME(a.name) + ',2)' + ' end'
                                 WHEN a.xtype = 56
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar(11),'
                                      + QUOTENAME(a.name) + ')' + ' end'
                                 WHEN a.xtype = 60
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar(22),'
                                      + QUOTENAME(a.name) + ')' + ' end'
                                 WHEN a.xtype = 239
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + '''''''''+' + 'replace('
                                      + QUOTENAME(a.name)
                                      + ','''''''','''''''''''')'
                                      + '+''''''''' + ' end'
                                 WHEN a.xtype = 108
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar('
                                      + CONVERT(VARCHAR(4), a.xprec + 2)
                                      + '),' + QUOTENAME(a.name) + ')'
                                      + ' end'
                                 WHEN a.xtype = 231
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + '''''''''+' + 'replace('
                                      + QUOTENAME(a.name)
                                      + ','''''''','''''''''''')'
                                      + '+''''''''' + ' end'
                                 WHEN a.xtype = 59
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar(23),'
                                      + QUOTENAME(a.name) + ',2)' + ' end'
                                 WHEN a.xtype = 58
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + '''''''''+' + 'convert(varchar(23),'
                                      + QUOTENAME(a.name) + ',121)'
                                      + '+''''''''' + ' end'
                                 WHEN a.xtype = 52
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar(12),'
                                      + QUOTENAME(a.name) + ')' + ' end'
                                 WHEN a.xtype = 122
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar(22),'
                                      + QUOTENAME(a.name) + ')' + ' end'
                                 WHEN a.xtype = 48
                                 THEN 'case when ' + QUOTENAME(a.name)
                                      + ' is null then ''NULL'' else '
                                      + 'convert(varchar(6),'
                                      + QUOTENAME(a.name) + ')' + ' end'
-- when a.xtype =165 then 'case when '+QUOTENAME(a.name)+' is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.length*2+2)+'),'+QUOTENAME(a.name) +')'+' end'
                                 WHEN a.xtype = 167
                                 THEN 'case when ' + QUOTENAME(a.name)+(CASE WHEN collation ='Chinese_PRC_CI_AS' THEN '' ELSE ' collate '+collation COLLATE DATABASE_DEFAULT  end)
                                      + ' is null then ''NULL'' else '
                                      + '''''''''+' + 'replace('
                                      + QUOTENAME(a.name)+(CASE WHEN collation ='Chinese_PRC_CI_AS' THEN '' ELSE ' collate '+collation COLLATE DATABASE_DEFAULT  end)
                                      + ','''''''','''''''''''')'
                                      + '+''''''''' + ' end'
                                 ELSE '''NULL'''
                            END AS col, a.colid, a.name
                  FROM      syscolumns a
                  WHERE     a.id = OBJECT_ID(@tablename)
                            AND a.xtype <> 189
                            AND a.xtype <> 34
                            AND a.xtype <> 35
                            AND a.xtype <> 36
                ) t
        ORDER BY colid;

        SELECT  @sqlstr = @sqlstr + LEFT(@sqlstr2, LEN(@sqlstr2) - 1) + ') '
                + LEFT(@sqlstr1, LEN(@sqlstr1) - 3) + ')'' from ' + @tablename
                + ( CASE WHEN @where IS NOT NULL
                              AND LEN(@where) > 0 THEN ' where ' + @where
                         ELSE ''
                    END );

        IF ( @HasIdentity = 1 )
            SET @sqlstr = @sqlstr
                + '  UNION ALL select ''SET IDENTITY_INSERT ' + @tablename
                + ' OFF'' ' + CHAR(10); 
                  
        PRINT @sqlstr;
        EXEC( @sqlstr);
        SET NOCOUNT OFF;
    END;

调用示例：

exec [sp_getinsert] @tablename='tablename',@where='id>5 ',@create=0