SQLÒ»¸ö´æ´¢¹ý³Ìµ÷ÓÃÁíÒ»¸ö´æ´¢¹ý³Ì »ñµÃ·µ»ØÖµÎÊÌâ
µÚÒ»ÖÖ·½·¨: ʹÓÃoutput²ÎÊý
USE AdventureWorks;
GO
IF OBJECT_ID ( 'Production.usp_GetList', 'P' ) IS NOT NULL
DROP PROCEDURE Production.usp_GetList;
GO
CREATE PROCEDURE Production.usp_GetList @product varchar(40)
, @maxprice money
, @compareprice money OUTPUT
, @listprice money OUT
AS
SELECT p.name AS Product, p.ListPrice AS 'List Price'
from Production.Product p
JOIN Production.ProductSubcategory s
ON p.ProductSubcategoryID = s.ProductSubcategoryID
WHERE s.name LIKE @product AND p.ListPrice < @maxprice;
-- Populate the output variable @listprice.
SET @listprice = (SELECT MAX(p.ListPrice)
from Production.Product p
JOIN Production.ProductSubcategory s
ON p.ProductSubcategoryID = s.ProductSubcategoryID
WHERE s.name LIKE @product AND p.ListPrice < @maxprice);
-- Populate the output variable @compareprice.
SET @compareprice = @maxprice;
GO
ÁíÒ»¸ö´æ´¢¹ý³Ìµ÷ÓõÄʱºò:
Create Proc Test
as
DECLARE @compareprice money, @cost money
EXECUTE Production.usp_GetList '%Bikes%', 700,
@compareprice OUT,
@cost OUTPUT
IF @cost <= @compareprice
BEGIN
PRINT 'These products can be purchased for less than
$'+RTRIM(CAST(@compareprice AS varchar(20)))+'.'
END
ELSE
PRINT 'The prices for all products in this category exceed
$'+ RTRIM(CAST(@compareprice AS varchar(20)))+'.'
µÚ¶þÖÖ·½·¨:´´½¨Ò»¸öÁÙʱ±í
create proc GetUserName
as
begin
select 'UserName'
end
Create table #tempTable (userName nvarchar(50))
insert into #tempTable(userName)
Ïà¹ØÎĵµ£º
ÔÚDELPHIÖг£³£ÒªÓõ½ADOQUERYÖеÄSQLÓï¾äÔö¼ÓÐÅÏ¢ºóÖ´ÐУ¬µ±ÒªÇóÔö¼ÓÌõ¼þ£¨Èç²ÎÊýʱ£©ÖмäµÄ¼ä¸ôºÜÖØÒª£¬¸ã²»ºÃ¾ÍÒª³ö´í£ºÏ¾ÙÀý˵Ã÷ÎÒÒª±í´ïµÄÒâ˼£º
È磺һ¸ö±í:student ÓÐ ksh,xm,xb,lqzy,lqcc¼¸¸ö×ֶΣ¬¶¼Îª×Ö·ûÐÍ¡£ÏÖÒªÇó°´xb·Ö×éͳ¼ÆÈËÊý£¬Í¬Ê±lqccÒªÇóÏÞ¶¨Ìõ¼þ¡£
Ò»°ãÇé¿öϵÄSQLÓï¾äÓ¦¸ÃΪ£º select xb,count(*) ......
±¾ÏµÁÐÎÄÕµ¼º½
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(Ò»)--sum()
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(¶þ)--max()
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(Èý)--row_number() /rank()/dense_rank()
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(ËÄ)--lag()/lead()
ʵ¼ÊÓ¦ÓÃÖÐÎÒÃÇ¿ÉÒÔͨ¹ýsum()ͳ¼Æ³ö×éÖеÄ×ܼƻòÕßÊÇÀÛ¼ÓÖµ£¬¾ßÌåʾÀýÈçÏ£º
......
±¾ÏµÁÐÎÄÕµ¼º½
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(Ò»)--sum()
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(¶þ)--max()
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(Èý)--row_number() /rank()/dense_rank()
[Oracle]¸ßЧµÄSQLÓï¾äÖ®·ÖÎöº¯Êý(ËÄ)--lag()/lead()
Èç¹ûÎÒÃǰ´ÕÕʾÀýÏëµÃµ½Ã¿¸ö²¿ÃÅнˮֵ×î¸ßµÄ¹ÍÔ±µÄ¼Í¼£¬¿ÉÒÔÓÐËÄÖÖ·½·¨ÊµÏÖ£ ......
±¾ÏµÁÐÎÄÕµ¼º½
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(Ò»)--αÁÐROWNUMʹÓü¼ÇÉ
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(¶þ)--±êÁ¿×Ó²éѯ
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(Èý)--PackageµÄÓŵã
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(ËÄ)--ÅúÁ¿´¦Àí
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(Îå)--µ÷Óô洢¹ý³Ì·µ»Ø½á¹û¼¯
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(Áù)- ......
±¾ÏµÁÐÎÄÕµ¼º½
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(Ò»)--αÁÐROWNUMʹÓü¼ÇÉ
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(¶þ)--±êÁ¿×Ó²éѯ
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(Èý)--PackageµÄÓŵã
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(ËÄ)--ÅúÁ¿´¦Àí
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(Îå)--µ÷Óô洢¹ý³Ì·µ»Ø½á¹û¼¯
[Oracle]¸ßЧµÄPL/SQL³ÌÐòÉè¼Æ(Áù)- ......