Sql server 如何使用动态SQL字符串?
与此相反:Sql server 如何使用动态SQL字符串?,sql-server,tsql,dynamic-sql,Sql Server,Tsql,Dynamic Sql,与此相反: -- Method call SELECT @FunctionResult = DWH_Staging.adm.SalesPlanExists(@Year, @Month, @CountryID, @Type) 我想用这样的东西: DECLARE @TestedDatabase = 'DWH_Staging', @TestedSchema = 'adm', @TestedObject = 'SalesPlanExists' DECLARE @sq
-- Method call
SELECT @FunctionResult = DWH_Staging.adm.SalesPlanExists(@Year, @Month, @CountryID, @Type)
我想用这样的东西:
DECLARE
@TestedDatabase = 'DWH_Staging',
@TestedSchema = 'adm',
@TestedObject = 'SalesPlanExists'
DECLARE @sql NVARHCAR(4000) = '@TestedDatabase+'.'+@TestedSchema+'.'+@TestedObject (@Year, @Month, @CountryID, @Type)'
-- Method call
SELECT @FunctionResult = @sql
非常感谢您的提示。您可以为查询设置模板,并在执行时替换字符串:
DECLARE @sql NVARHCAR(4000) = '{DATABASENAME}.{SCHEMANAME}.{OBJECTNAME} (' + @Year + ', ' + @Month + ', ' + @CountryID + ', ' + @Type + ')'
SET @SQL_SCRIPT = REPLACE(@sql, '{DATABASENAME}', @DBNAME)
然后,执行它:
EXECUTE (@SQL_SCRIPT)
您可以做的是为查询设置模板,并在执行时替换字符串:
DECLARE @sql NVARHCAR(4000) = '{DATABASENAME}.{SCHEMANAME}.{OBJECTNAME} (' + @Year + ', ' + @Month + ', ' + @CountryID + ', ' + @Type + ')'
SET @SQL_SCRIPT = REPLACE(@sql, '{DATABASENAME}', @DBNAME)
然后,执行它:
EXECUTE (@SQL_SCRIPT)
下面是一个参数化SQL示例,猜测您的数据类型:
DECLARE
@TestedDatabase sysname = 'DWH_Staging'
,@TestedSchema sysname = 'adm'
,@TestedObject sysname = 'SalesPlanExists'
,@FunctionResult int
,@Year int
,@Month int
,@CountryID int
,@Type int;
DECLARE @sql nvarchar(MAX) = N'SELECT @FunctionResult = '
+QUOTENAME(@TestedDatabase)
+N'.'
+QUOTENAME(@TestedSchema)
+N'.'
+QUOTENAME(@TestedObject)
+ N'(@Year, @Month, @CountryID, @Type)';
SELECT @sql
-- Method call
EXECUTE sp_executesql
@sql
,N'@FunctionResult int OUTPUT
,@Year int
,@Month int
,@CountryID int
,@Type int'
,@FunctionResult = @FunctionResult OUTPUT
,@Year = @Year
,@Month = @Month
,@CountryID = @CountryID
,@Type = @Type;
下面是一个参数化SQL示例,猜测您的数据类型:
DECLARE
@TestedDatabase sysname = 'DWH_Staging'
,@TestedSchema sysname = 'adm'
,@TestedObject sysname = 'SalesPlanExists'
,@FunctionResult int
,@Year int
,@Month int
,@CountryID int
,@Type int;
DECLARE @sql nvarchar(MAX) = N'SELECT @FunctionResult = '
+QUOTENAME(@TestedDatabase)
+N'.'
+QUOTENAME(@TestedSchema)
+N'.'
+QUOTENAME(@TestedObject)
+ N'(@Year, @Month, @CountryID, @Type)';
SELECT @sql
-- Method call
EXECUTE sp_executesql
@sql
,N'@FunctionResult int OUTPUT
,@Year int
,@Month int
,@CountryID int
,@Type int'
,@FunctionResult = @FunctionResult OUTPUT
,@Year = @Year
,@Month = @Month
,@CountryID = @CountryID
,@Type = @Type;
您想要准确实现什么和什么不起作用?在调用
sp_executesql
时使用OUTPUT
变量您想要准确实现什么和什么不起作用?在调用sp_executesql
时使用OUTPUT
变量,因为使用QUOTENAME
而被投票赞成;经常被忽视的东西。赞成使用QUOTENAME
;经常被忽视的事情。