如何给SQLSERVER存储过程传递数组参数
日期:2007-10-20 荐:
Q. How can I pass an array of values to a SQL Server stored-procedure. (v1.1 1999.05.14) A. Basically you can't - SQL Server has no array type - ANSI SQL 92 does not specify array support. But there are various ways around it. 确切的说不行-SQL SERVER没有数组类型,ANSI SQL 92标准也不支持数组。但可用其它的方法来实现。 1. You could simulate an array by passing one or more varchar(255) fields with comma-separated values and then use a WHILE loop with PATINDEX and SUBSTR to extract the values. 1、你可以使用几个VARCHAR(255)字段来模拟数组,字段中用逗号分开各个数据,然后使用循环和PATINDEX和SUBSTR分开这些数据。 2. The more usual way to do this would be to populate a temporary table with the values you need and then use the contents of that table from within the stored-procedure. Example of this below 2、通常这种方法需要为这些数据创建一个临时表,然后在存储过程使用表中的内容。如下例 create procedure mytest @MyParmTempTable varchar(30) as begin -- @MyParmTempTable contains my parameter list... 这个变量是包含参数的表名 -- For simplicity use dynamic sql to copy into a normal temp table... create table #MyInternalList ( list_item varchar( 2 ) not null ) set nocount on insert #MyInternalList exec ( "select * from " @MyParmTempTable ) set nocount off -- It is now easier to join.. select * from sysobjects where type in ( select list_item from #MyInternalList ) end go To call.. create table #MyList ( list_item varchar( 2 ) not null ) insert #MyList values ( 'S' ) insert #MyList values ( 'U' ) insert #MyList values ( 'P' ) exec mytest "#MyList" 3. If all you wanted to do was use the array/list as input to an IN clause in a WHERE statement you could use :- 3、如果你想在IN子句里使用输入的数组参数可以这样做: CREATE PROCEDURE sp_MyProcedure (@MyCommaDelimitedString Varchar(255)) AS BEGIN EXEC ('SELECT * FROM MYTABLE WHERE MYFIELD IN (' @MyCommaDelimitedString ')') END GO
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