我有一个存储过程应该能够在我的MS Sql Server上的任何数据库的任何表上执行。 EXEC和USE语句的大多数组合都没有产生任何结果。这是存储过程:
CREATE PROCEDURE [dbo].[usp_TrimAndLowerCaseVarcharFields]
(
@Database VARCHAR(200),
@TableSchema VARCHAR(200),
@TableName VARCHAR(200)
)
AS
BEGIN
DECLARE @sSql VARCHAR(MAX)
SET @Database = '[' + @Database + ']'
SET @sSql = ''
-- Create first part of a statement to update all columns that have type varchar
SELECT @sSql = @sSql + COLUMN_NAME + ' = LOWER(RTRIM(' + COLUMN_NAME + ')), '
FROM INFORMATION_SCHEMA.COLUMNS
WHERE DATA_TYPE = 'varchar'
AND TABLE_CATALOG = @Database
AND TABLE_SCHEMA = @TableSchema
AND TABLE_NAME = @TableName
SET @sSql = 'UPDATE ' + @Database + '.' + @TableSchema + '.' + @TableName + ' SET ' + @sSql
-- Delete last two symbols (', ')
SET @sSql = LEFT(@sSql, LEN(@sSql) - 1)
EXEC(@sSql)
END
请告诉我在[OtherDB]上执行它需要做些什么。[TargetTable]。
答案 0 :(得分:15)
您可以完全限定表和存储过程。换句话说,你可以这样做:
UPDATE [OtherDB].[Schema].[targetTable] SET ...
看来你已经在你的过程中这样做了。
您还可以使用完全限定名称执行存储过程 - 例如
EXEC [OtherDB].[dbo].[usp_TrimAndLowerCaseVarcharFields]
老实说,你的proc看起来很好,你收到任何错误信息吗?如果是这样,请发布它们。另外,请确保您的用户可以访问其他数据库。
答案 1 :(得分:2)
您使用的查询中的表名是错误的,它正在查找相同的数据库,但您确实需要从不同的数据库中查找。所以查询如下:
SELECT @sSql = @sSql + COLUMN_NAME + ' = LOWER(RTRIM(' + COLUMN_NAME + ')), '
FROM [TargetDB].INFORMATION_SCHEMA.COLUMNS
WHERE DATA_TYPE = 'varchar'
AND TABLE_CATALOG = @Database
AND TABLE_SCHEMA = @TableSchema
AND TABLE_NAME = @TableName
-- [TargetDB] = @Database
TargetDB与您传递的数据库(@Database)
相同如果要动态使用[TargetDB],则需要生成sql(@sSql)并执行sql string。
答案 2 :(得分:0)
在这种情况下,我会在SQL Server中使用2 sp:
sp_MSforeachtable
sp_MSforeachdb
有关详细信息,请阅读here中的文章。 希望这有帮助。
exec @RETURN_VALUE=sp_MSforeachtable @command1, @replacechar, @command2,
@command3, @whereand, @precommand, @postcommand
exec @RETURN_VALUE = sp_MSforeachdb @command1, @replacechar,
@command2, @command3, @precommand, @postcommand
完整的脚本:
declare @DatabaseName varchar(max), @DatabaseCharParam nchar(1)
declare @TableSchema varchar(max)
declare @TableName varchar(max), @TableCharParam nchar(1)
set @DatabaseName='DATABASENAME'; set @DatabaseCharParam='?'
set @TableSchema='dbo'
set @TableName='TABLENAME'; set @TableCharParam='$'
-- Exemple Script to execute in each table in each database
-- Create first part of a statement to update all columns that have type varchar
DECLARE @sSql VARCHAR(MAX)
set @sSql=''
SELECT @sSql = isnull(@sSql,'') + COLUMN_NAME + ' = LOWER(RTRIM(' + COLUMN_NAME + ')),'
FROM INFORMATION_SCHEMA.COLUMNS
WHERE DATA_TYPE = 'varchar'
AND TABLE_CATALOG = @DatabaseName
AND TABLE_SCHEMA = @TableSchema
AND TABLE_NAME = @TableName
declare @EachTablecmd1 varchar(2000)
--Prepare @EachTablecmd1 the script to execution in each table using sp_MSforeachtable (ATENTION: @Command1 are limited to varchar(2000) )
--in sp_MSforeachtable @TableCharParam will be subtituted with owner i.e:[dbo].[TABLENAME]
set @sSql='update '+@TableCharParam+' set '+ left(@sSql,LEN(@sSql)-1)
set @EachTablecmd1='if '''''+ @TableCharParam +'''''=''''['+@TableSchema+'].['+@TableName+']'''' '+@sSql
--i.e.: if 'table1'='table1' update table1 set column1=LOWER(RTRIM(column1)),....
-- the @sSql for each table in a database
set @sSql ='exec sp_MSforeachtable @command1='''+@EachTablecmd1+''' ,@replacechar='''+@TableCharParam+''''
declare @EachBDcmd1 varchar(2000)
--Prepare the execution to each database using sp_MSforeachdb (ATENTION: @Command1 are limited to varchar(2000) )
set @EachBDcmd1='if '''+@DatabaseCharParam+'''='''+@DatabaseName+''' '+ @sSql
--print @EachBDcmd1
exec sp_MSforeachdb @command1=@EachBDcmd1,@replacechar=@DatabaseCharParam