如何从sql server导出或导入sql server数据库到mysql服务器通过网络

Question

我想从mssql服务器系统通过网络连接mysql服务器系统，因为我想导入或导出sql server数据库从mssql服务器系统到mysql服务器系统。

有人可以告诉我，我该怎么做？

谢谢

Answer 1

尝试使用此脚本，它允许您导入数据。您必须指定表名并在MySQL服务器上运行生成的代码。

DDL：

CREATE TABLE Labour.Employee 
(
     EmployeeID INT IDENTITY (1, 1) PRIMARY KEY NOT NULL 
    , IsMainWorkPlace BIT NOT NULL 
    , TabelNumber VARCHAR(6) NULL 
    , PersonID INT NOT NULL 
    , DepartmentUID UNIQUEIDENTIFIER NOT NULL 
    , DateIn DATETIME NOT NULL 
    , DateOut DATETIME NULL 
    , PositionID INT NULL 
    , DatePension DATETIME NULL 
    , IsLabourUnionMember BIT NOT NULL 
    , FiringReasonID INT NULL 
) 

查询：

DECLARE 
     @Table NVARCHAR(50) 
    , @Schema NVARCHAR(50) 
    , @ObjectID INT 
    , @IsImportIdentity BIT = 1 
    , @IsCreateTable BIT = 1 

DECLARE [tables] CURSOR READ_ONLY FAST_FORWARD LOCAL FOR 
SELECT 
     t.name 
    , s.name 
    , t.[object_id] 
FROM (
    SELECT DISTINCT 
      t.[schema_id] 
     , t.[object_id] 
     , t.name 
    FROM sys.tables t WITH (NOWAIT) 
    JOIN sys.partitions p WITH (NOWAIT) ON p.[object_id] = t.[object_id] 
    WHERE p.[rows] > 0 
) t 
JOIN sys.schemas s WITH (NOWAIT) ON t.[schema_id] = s.[schema_id] 
WHERE t.name IN ('<your table>') 

OPEN [tables] 

FETCH NEXT FROM [tables] INTO 
     @Table 
    , @Schema 
    , @ObjectID 

DECLARE 
     @Name SYSNAME = N'' 
    , @NewName SYSNAME = N'' 
    , @SQLCreate NVARCHAR(MAX) = N'' 
    , @SQLInsert NVARCHAR(MAX) = N'' 
    , @SQLColumns NVARCHAR(MAX) = N'' 
    , @SQLTinyColumns NVARCHAR(MAX) = N'' 

WHILE @@FETCH_STATUS = 0 BEGIN 

    SELECT 
      @Name = @Schema + N'.' + @Table 
     , @NewName = N'`' + LOWER(@Schema) + N'`.`' + LOWER(@Table) + N'`' 
     , @SQLCreate = N'' 
     , @SQLInsert = N'' 
     , @SQLColumns = N'' 
     , @SQLTinyColumns = N'' 

    SELECT 
      @SQLCreate = N'DROP TABLE IF EXISTS ' + @NewName + N';' + CHAR(13) + 
      N'CREATE TABLE ' + @NewName + CHAR(13) + N'(' + CHAR(13) + STUFF((
      SELECT CHAR(9) + N', `' + 
       c.name + N'` ' + CASE WHEN t.name = N'uniqueidentifier' THEN 'VARCHAR(36)' ELSE UPPER(t.name) END + 
       CASE WHEN t.name IN (N'nvarchar', N'varchar', N'nchar', N'char', N'varbinary', N'binary') 
         THEN N'(' + CASE WHEN c.max_length = -1 THEN N'MAX' ELSE CAST(c.max_length AS NVARCHAR(5)) END + N')' 
        WHEN t.name IN (N'datetime2', N'time2', N'datetimeoffset') 
         THEN N'(' + CAST(c.scale AS NVARCHAR(5)) + N')' 
        WHEN t.name = N'decimal' 
         THEN N'(' + CAST(c.[precision] AS NVARCHAR(5)) + N',' + CAST(c.scale AS NVARCHAR(5)) + N')' 
        ELSE N'' 
       END + N' ' + 
       CASE WHEN c.is_nullable = 0 THEN N'NOT NULL' ELSE N'DEFAULT NULL' END + N' ' + 
       CASE WHEN c.is_identity = 1 THEN N'AUTO_INCREMENT PRIMARY KEY' ELSE N'' END 
        + CHAR(13) 
      FROM sys.columns c 
      JOIN sys.types t ON c.system_type_id = t.system_type_id AND c.system_type_id = t.user_type_id 
      WHERE c.[object_id] = o.[object_id] 
      ORDER BY c.column_id 
      FOR XML PATH(N''), TYPE, ROOT).value(N'root[1]', N'NVARCHAR(MAX)'), 1, 2, CHAR(9) + N' ') + N');' 
     , @SQLInsert = N'INSERT INTO ' + @NewName + N' (' + STUFF((
      SELECT N', `' + c.name + '`' 
      FROM sys.columns c 
      WHERE c.[object_id] = o.[object_id] 
       AND (c.is_identity = 0 OR @IsImportIdentity = 1) 
      ORDER BY c.column_id 
      FOR XML PATH(N''), TYPE, ROOT).value(N'root[1]', N'NVARCHAR(MAX)'), 1, 2, N'') + N')' 
     , @SQLTinyColumns = STUFF((
      SELECT N', ' + c.name 
      FROM sys.columns c 
      WHERE c.[object_id] = o.[object_id] 
      ORDER BY c.column_id 
      FOR XML PATH(N''), TYPE, ROOT).value(N'root[1]', N'NVARCHAR(MAX)'), 1, 2, N'') 
     , @SQLColumns = STUFF((SELECT + CHAR(13) + 
      CASE 
       WHEN t.name = N'uniqueidentifier' 
        THEN ' + '', '' + ISNULL('''''''' + CAST([' + c.name + '] AS VARCHAR(MAX)) + '''''''', ''NULL'')' 
       WHEN t.name IN (N'nvarchar', N'varchar', N'nchar', N'char', N'varbinary', N'binary') 
        THEN ' + '', '' + ISNULL('''''''' + CAST(REPLACE([' + c.name + '], '''''''', '''''''''''') AS NVARCHAR(MAX)) + '''''''', ''NULL'')' 
       WHEN t.name = N'datetime' 
        THEN ' + '', '' + ISNULL('''''''' + CONVERT(VARCHAR, [' + c.name + '], 120) + '''''''', ''NULL'')' 
       ELSE 
       N' + '', '' + ISNULL(CAST([' + c.name + '] AS NVARCHAR(MAX)), N''NULL'')' 
      END 
      FROM sys.columns c 
      JOIN sys.types t ON c.system_type_id = t.system_type_id AND c.system_type_id = t.user_type_id 
      WHERE c.[object_id] = o.[object_id] 
       AND (c.is_identity = 0 OR @IsImportIdentity = 1) 
      ORDER BY c.column_id 
      FOR XML PATH(N''), TYPE, ROOT).value(N'root[1]', N'NVARCHAR(MAX)'), 1, 10, N'CHAR(13) + '', ('' +') 
    FROM sys.objects o 
    WHERE o.[type] IN (N'V', N'U') 
     AND o.object_id = @ObjectID 

    IF @IsCreateTable = 1 
     PRINT @SQLCreate 
    ELSE 
     PRINT N'TRUNCATE TABLE ' + @NewName + N';' 

    DECLARE @SQL NVARCHAR(MAX) = N'  
    SET NOCOUNT ON; 
    DECLARE 
      @SQL NVARCHAR(MAX) = N'''' 
     , @x INT = 1 
     , @count INT = (SELECT COUNT(1) FROM ' + @Name + ') 

    IF EXISTS(
     SELECT 1 
     FROM tempdb.dbo.sysobjects 
     WHERE ID = OBJECT_ID(''tempdb..#import'') 
    ) 
     DROP TABLE #import; 

    SELECT *, ''RowNumber'' = ROW_NUMBER() OVER (ORDER BY ' + @SQLTinyColumns + N') 
    INTO #import 
    FROM ' + @Name + N' 

    WHILE @x < @count BEGIN 

     SELECT @SQL = ''VALUES '' + STUFF((
     SELECT ' + @SQLColumns + N' + '')''' + N' 
     FROM #import 
     WHERE RowNumber BETWEEN @x AND @x + 9 
     FOR XML PATH(N''''), TYPE, ROOT).value(N''root[1]'', N''NVARCHAR(MAX)''), 1, 2, CHAR(13) + '' '') + '';'' 

     PRINT(''' + @SQLInsert + ''') 
     PRINT(@SQL) 

     SELECT @x = @x + 10 

    END' 

    EXEC sys.sp_executesql @SQL 

    FETCH NEXT FROM [tables] INTO 
      @Table 
     , @Schema 
     , @ObjectID 

END 

CLOSE [tables] 
DEALLOCATE [tables] 

输出：

DROP TABLE IF EXISTS `labour`.`employee`; 
CREATE TABLE `labour`.`employee` 
(
     `EmployeeID` INT NOT NULL AUTO_INCREMENT PRIMARY KEY 
    , `IsMainWorkPlace` BIT NOT NULL 
    , `TabelNumber` VARCHAR(6) DEFAULT NULL 
    , `PersonID` INT NOT NULL 
    , `DepartmentUID` VARCHAR(36) NOT NULL 
    , `DateIn` DATETIME NOT NULL 
    , `DateOut` DATETIME DEFAULT NULL 
    , `PositionID` INT DEFAULT NULL 
    , `DatePension` DATETIME DEFAULT NULL 
    , `IsLabourUnionMember` BIT NOT NULL 
    , `FiringReasonID` INT DEFAULT NULL 
); 
INSERT INTO `labour`.`employee` (`EmployeeID`, `IsMainWorkPlace`, `TabelNumber`, `PersonID`, `DepartmentUID`, `DateIn`, `DateOut`, `PositionID`, `DatePension`, `IsLabourUnionMember`, `FiringReasonID`) 
VALUES 
    (165515, 0, '65515', 183994, '9DA9EEC9-F2EC-4FC7-8F21-DF646FDF397E', '1994-03-06 00:00:00', NULL, 35125, '2001-05-01 00:00:00', 1, NULL) 
, (165516, 1, '65516', 184184, '9DA9EEC9-F2EC-4FC7-8F21-DF646FDF397E', '1994-12-09 00:00:00', NULL, 35125, NULL, 1, NULL) 
, (165517, 1, '65517', 185214, '0BF3F7C4-2590-40D0-880D-923C8D8339A7', '1953-11-02 00:00:00', '2002-10-05 00:00:00', 35125, '1974-08-06 00:00:00', 1, NULL) 
, (165518, 1, '65518', 185536, '2CE8E026-FE5B-4BDD-9330-43AB43CE3DE0', '2004-07-12 00:00:00', '2004-12-01 00:00:00', 35129, '2003-08-06 00:00:00', 0, NULL) 
, (165519, 1, '65519', 185596, '2CE8E026-FE5B-4BDD-9330-43AB43CE3DE0', '2004-11-17 00:00:00', NULL, 35129, NULL, 0, NULL) 
, (165520, 1, '65520', 184912, '0BF3F7C4-2590-40D0-880D-923C8D8339A7', '1988-10-22 00:00:00', '2003-03-05 00:00:00', 35120, NULL, 1, NULL) 
, (165521, 1, '65521', 184984, '1D07CF00-A7FA-489D-9D58-286C7E24A7A2', '2001-04-06 00:00:00', NULL, 35120, NULL, 1, NULL) 
, (165522, 1, '65522', 185008, '896681F3-B452-410E-AD4A-97DCF4FE6722', '1994-05-11 00:00:00', NULL, 35120, NULL, 1, NULL) 
, (165523, 0, '65523', 183993, 'DC5106A4-3649-4C12-ABF5-03CE21EC1679', '1994-05-06 00:00:00', NULL, 35124, NULL, 1, NULL) 
, (165524, 1, '65524', 184146, 'A603E966-6F85-4FC1-BA06-40E391C7218E', '1995-03-22 00:00:00', NULL, 35111, NULL, 1, NULL); 

Answer 2

您可以通过使用做到这一点