Oracle 中 EXECUTE IMMEDIATE INTO 的 SQL 服务器等价物是什么

Question

Oracle 中 EXECUTE IMMEDIATE INTO 的 SQL 服务器等效项是什么？

例如

DECLARE QRY varchar(100);

val int;

BEGIN

QRY:='select count(*) from production.product';

**EXECUTE IMMEDIATE** QRY **into** val;

dbms_output.put_line(val);

END;

/

Answer 1

T-SQL 等同于 EXECUTE IMMEDIATE 是 Dynamic Sql.

DECLARE @intCount int
EXECUTE sp_executesql N'select @intCount=count(*) from product', N'@intCount int output', @intCount output;
Print(@intCount)

或者，您可以使用

DECLARE @intCount2 int
SELECT @intCount2 = count(*) from product

Answer 2

您不能将标量变量设置为动态查询的结果，但可以将结果插入到 table 变量中。这行得通。

DECLARE @tbl TABLE (RowCnt INT NULL);

DECLARE
   @QRY varchar(100);

BEGIN

  SET @QRY = 'select <Aggregate Function> from tableName'; --Builds the dynamic query

  INSERT @tbl
    (
      RowCnt
    )
  EXECUTE(@QRY); --Executes the query

  SELECT 
    * 
  FROM @tbl;

END;

Oracle 中 EXECUTE IMMEDIATE INTO 的 SQL 服务器等价物是什么

What is the SQL Server equivalent of EXECUTE IMMEDIATE INTO in Oracle

dynamic-sql

oracle11g

sql-server-2012