Sql server SQL Server:变量删除表和架构
我试图使用变量和其他变量中的其他变量执行drop表。一些变量由查询定义,然后在其他查询的结果中使用。然而,当我解析我得到的数据时,我对此有一个问题 命令已成功完成 但是,当我尝试执行时,我会收到以下错误消息 Msg 245,第16级,状态1,第18行Sql server SQL Server:变量删除表和架构,sql-server,variables,Sql Server,Variables,我试图使用变量和其他变量中的其他变量执行drop表。一些变量由查询定义,然后在其他查询的结果中使用。然而,当我解析我得到的数据时,我对此有一个问题 命令已成功完成 但是,当我尝试执行时,我会收到以下错误消息 Msg 245,第16级,状态1,第18行 将varchar值“S”转换为数据类型int时,转换失败 我不知道什么东西真正有“S”的值 第18行是指 EXEC @defn_id_query 它所指的变量如下所列 SET @defn_id_query = ( 'SELECT defn_id
将varchar值“S”转换为数据类型int时,转换失败 我不知道什么东西真正有“S”的值 第18行是指
EXEC @defn_id_query
它所指的变量如下所列
SET @defn_id_query = (
'SELECT defn_id FROM ' + @systemschema + '.[defn]
WHERE [defn_type_name] = ''CONTAINER''
AND defn_subtype_id = 1
AND defn_name = ''' + @schema + ''
)
下面是完整的代码
DECLARE @defn_ver_id_query varchar
DECLARE @defn_ver_id int
DECLARE @defn_id_query varchar
DECLARE @defn_id int
DECLARE @schema varchar
DECLARE @deleteschema varchar
DECLARE @systemschema varchar
DECLARE @variableSET varchar
DECLARE @deletesreferences varchar
SET @schema = 'fpscdb001_ws_001'
SET @systemschema = '[fpscdb001_system]'
SET @defn_id_query = (
'SELECT defn_id FROM ' + @systemschema + '.[defn]
WHERE [defn_type_name] = ''CONTAINER''
AND defn_subtype_id = 1
AND defn_name = ''' + @schema + ''
)
EXEC @defn_id_query
EXEC @defn_ver_id_query
SET @defn_id = (@defn_id_query)
SET @defn_ver_id = (@defn_ver_id_query)
SET @defn_ver_id_query = ('SELECT [defn_ver_id]
FROM ' + @systemschema + '.[defn_ver]
WHERE defn_id = @defn_id')
SET @deleteschema = (
'DROP TABLE ' + @schema + '.[id_generator]
DROP TABLE ' + @schema + '.[incident]
DROP TABLE ' + @schema + '.[incident_bal]
DROP TABLE ' + @schema + '.[incident_event_sum]
DROP TABLE ' + @schema + '.[incident_FH_HOURS]
DROP TABLE ' + @schema + '.[incident_FH_STAGE1]
DROP TABLE ' + @schema + '.[incident_FH_STAGE2]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3a]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3b]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3c]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3d]
DROP TABLE ' + @schema + '.[incident_FH_Stage4]
DROP TABLE ' + @schema + '.[incident_ST_STAGE1]
DROP TABLE ' + @schema + '.[incident_ST_STAGE2]DECLARE @defn_ver_id_query varchar
DECLARE @defn_ver_id int
DECLARE @defn_id_query varchar
DECLARE @defn_id int
DECLARE @schema varchar
DECLARE @deleteschema varchar
DECLARE @systemschema varchar
DECLARE @variableSET varchar
DECLARE @deletesreferences varchar
SET @schema = 'fpscdb001_ws_001'
SET @systemschema = '[fpscdb001_system]'
SET @defn_id_query = (
'SELECT defn_id FROM ' + @systemschema + '.[defn]
WHERE [defn_type_name] = ''CONTAINER''
AND defn_subtype_id = 1
AND defn_name = ''' + @schema + ''
)
SET @defn_id = (@defn_id_query)
SET @defn_ver_id = (@defn_ver_id_query)
EXEC @defn_id_query
EXEC @defn_ver_id_query
SET @defn_ver_id_query = ('SELECT [defn_ver_id]
FROM ' + @systemschema + '.[defn_ver]
WHERE defn_id = @defn_id')
SET @deleteschema = (
'DROP TABLE ' + @schema + '.[id_generator]
DROP TABLE ' + @schema + '.[incident]
DROP TABLE ' + @schema + '.[incident_bal]
DROP TABLE ' + @schema + '.[incident_event_sum]
DROP TABLE ' + @schema + '.[incident_FH_HOURS]
DROP TABLE ' + @schema + '.[incident_FH_STAGE1]
DROP TABLE ' + @schema + '.[incident_FH_STAGE2]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3a]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3b]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3c]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3d]
DROP TABLE ' + @schema + '.[incident_FH_Stage4]
DROP TABLE ' + @schema + '.[incident_ST_STAGE1]
DROP TABLE ' + @schema + '.[incident_ST_STAGE2]
DROP TABLE ' + @schema + '.[incident_ST_STAGE3]
DROP TABLE ' + @schema + '.[incident_status]
DROP TABLE ' + @schema + '.[incident_transn]
DROP TABLE ' + @schema + '.[incident_transn_sum]
DROP TABLE ' + @schema + '.[item_field_journal]
DROP SCHEMA ' + @schema
)
SET @deletesreferences = ('
DELETE FROM ' + @systemschema + '.[defn_reln]
WHERE from_defn_ver_id = @defn_ver_id
DELETE FROM ' + @systemschema + '.[defn_ver]
WHERE defn_id = ' + @defn_id + '
DELETE FROM ' + @systemschema + '.[cal_wksp]
WHERE wksp_defn_id = ' + @defn_id + '
DELETE FROM ' + @systemschema + '.[bus_proc_defn]
WHERE defn_id = ' + @defn_id + '
DELETE FROM ' + @systemschema + '.[defn]
WHERE [defn_type_name] = ''CONTAINER''
AND defn_subtype_id = 1
and defn_id = ' + @defn_id)
EXEC @deleteschema
EXEC @deletesreferences
DROP TABLE ' + @schema + '.[incident_ST_STAGE3]
DROP TABLE ' + @schema + '.[incident_status]
DROP TABLE ' + @schema + '.[incident_transn]
DROP TABLE ' + @schema + '.[incident_transn_sum]
DROP TABLE ' + @schema + '.[item_field_journal]
DROP SCHEMA ' + @schema
)
SET @deletesreferences = ('
DELETE FROM ' + @systemschema + '.[defn_reln]
WHERE from_defn_ver_id = @defn_ver_id
DELETE FROM ' + @systemschema + '.[defn_ver]
WHERE defn_id = ' + @defn_id + '
DELETE FROM ' + @systemschema + '.[cal_wksp]
WHERE wksp_defn_id = ' + @defn_id + '
DELETE FROM ' + @systemschema + '.[bus_proc_defn]
WHERE defn_id = ' + @defn_id + '
DELETE FROM ' + @systemschema + '.[defn]
WHERE [defn_type_name] = ''CONTAINER''
AND defn_subtype_id = 1
and defn_id = ' + @defn_id)
EXEC @deleteschema
EXEC @deletesreferences
我对其他解决方案持开放态度专业人士有何建议
谢谢
编辑:
我猜取消所有这些撇号会让我困惑。。。我试过以下方法
SET @defn_ver_id_query = ('SELECT [defn_ver_id]
FROM ' + @systemschema + '.[defn_ver]
WHERE defn_id = convert(nvarchar(max),' + @defn_id + '')
我也尝试过这种方法
SET @defn_ver_id_query = ('SELECT [defn_ver_id]
FROM ' + @systemschema + '.[defn_ver]
WHERE defn_id = ' + convert(nvarchar(max),@defn_id) + '')
新的完整编辑
DECLARE @defn_ver_id_query varchar(max)
DECLARE @defn_ver_id int
DECLARE @defn_id_query varchar(max)
DECLARE @defn_id int
DECLARE @schema varchar(max)
DECLARE @deleteschema varchar(max)
DECLARE @systemschema varchar(max)
DECLARE @variableSET varchar(max)
DECLARE @deletesreferences varchar(max)
SET @schema = 'fpscdb001_ws_001'
SET @systemschema = '[fpscdb001_system]'
SET @defn_id_query = (
'SELECT defn_id FROM ' + @systemschema + '.[defn]
WHERE [defn_type_name] = ''CONTAINER''
AND defn_subtype_id = 1
AND defn_name = ' + @schema + ''
)
SET @defn_id = (@defn_id_query)
SET @defn_ver_id = (@defn_ver_id_query)
EXEC (@defn_id_query)
EXEC (@defn_ver_id_query)
SET @defn_ver_id_query = ('SELECT [defn_ver_id]
FROM ' + @systemschema + '.[defn_ver]
WHERE defn_id = ' + convert(nvarchar(max),@defn_id) + '')
SET @deleteschema = (
'DROP TABLE ' + @schema + '.[id_generator]
DROP TABLE ' + @schema + '.[incident]
DROP TABLE ' + @schema + '.[incident_bal]
DROP TABLE ' + @schema + '.[incident_event_sum]
DROP TABLE ' + @schema + '.[incident_FH_HOURS]
DROP TABLE ' + @schema + '.[incident_FH_STAGE1]
DROP TABLE ' + @schema + '.[incident_FH_STAGE2]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3a]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3b]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3c]
DROP TABLE ' + @schema + '.[incident_FH_STAGE3d]
DROP TABLE ' + @schema + '.[incident_FH_Stage4]
DROP TABLE ' + @schema + '.[incident_ST_STAGE1]
DROP TABLE ' + @schema + '.[incident_ST_STAGE2]
DROP TABLE ' + @schema + '.[incident_ST_STAGE3]
DROP TABLE ' + @schema + '.[incident_status]
DROP TABLE ' + @schema + '.[incident_transn]
DROP TABLE ' + @schema + '.[incident_transn_sum]
DROP TABLE ' + @schema + '.[item_field_journal]
DROP SCHEMA ' + @schema
)
SET @deletesreferences = ('
DELETE FROM ' + @systemschema + '.[defn_reln]
WHERE from_defn_ver_id = ' + convert(nvarchar(max),@defn_ver_id) + '
DELETE FROM ' + @systemschema + '.[defn_ver]
WHERE defn_id = ' + convert(nvarchar(max),@defn_id) + '
DELETE FROM ' + @systemschema + '.[cal_wksp]
WHERE wksp_defn_id = ' + convert(nvarchar(max),@defn_id) + '
DELETE FROM ' + @systemschema + '.[bus_proc_defn]
WHERE defn_id = ' + convert(nvarchar(max),@defn_id) + '
DELETE FROM ' + @systemschema + '.[defn]
WHERE [defn_type_name] = ''CONTAINER''
AND defn_subtype_id = 1
and defn_id = ' + convert(nvarchar(max),@defn_id))
EXEC (@deleteschema)
EXEC (@deletesreferences)
我建议:
SET@string='Hello'+CONVERT(nvarchar(max),1)代码>
NVARCHAR
,则需要指定长度。示例:NVARCHAR(100)
。在您的例子中,当您尝试将其转换为SQL查询时,您只需使用CONVERT(nvarchar(max),…)
。之后它将回落到较低的长度SET@string='字符串包含“User”!'代码>。这是错误的。您需要在字符串中转义逗号,您可以通过双引号来实现。请参见此示例:SET@string='字符串包含“用户”!'代码>
SET@string='Hello'+'User'代码>
EXEC(@sqlString)
。您尝试这样做:EXEC@sqlString
。这就是SQL Server查找名为@sqlString的过程的方式,这是错误的希望这将帮助您解决所有问题。不使用长度声明
varchar
是您的问题的一部分。当使用+
进行连接时,还需要将int强制转换为varchar
。在exec
调用中需要括号。如果声明varchar
而没有长度,则默认为varchar(1)
。例如,您的变量@defn\u ver\u id\u query
='S'。加上其他人所指出的一切。谢谢你的快速回复!好的,现在我已经做了你和lonic所做的调整,现在我收到了一条错误消息,我相信我错过了使用“SET”。我希望将defn_id设置为defn_id_查询的结果。在进行了一些查找之后,我相信我应该使用“sp_executesql”,仍在尝试找到一个与我使用的结果相近的示例。@lonic我根据您的建议做了一些调整,我试着根据你的第一个建议进行调整,我已经将它们添加到我的编辑部分,我相信我的撇号现在也被更正了,我在我的每个执行官周围也添加了()。是的,现在看起来好多了!乍一看,我认为它现在应该可以工作了?嗯,我在你的代码中看到了一件事SET@defn\u ver\u id\u query=('SELECT[defn\u ver\u id]…)
字符串赋值不需要这些括号。稍后,您需要为EXEC
使用括号,但分配不需要括号。你可以把它们留在那里。