sqlserver 数组,如何给SQLSERVER存储过程传递数组参数

如何给SQLSERVER存储过程传递数组参数 - 应用软件 - 电脑教程网

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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