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ÍòÄܵķÖÒ³sql(ת)

CREATE proc page
@RecordCount int output,
@QueryStr nvarchar(100)='table1',--±íÃû¡¢ÊÓͼÃû¡¢²éѯÓï¾ä
@PageSize int=20, --ÿҳµÄ´óС(ÐÐÊý)
@PageCurrent int=2, --ÒªÏÔʾµÄÒ³ ´Ó0¿ªÊ¼
@FdShow nvarchar (1000)='*', --ÒªÏÔʾµÄ×Ö¶ÎÁбí
@IdentityStr nvarchar (100)='id', --Ö÷¼ü
@WhereStr nvarchar (200)='1=1',
@FdOrder nvarchar(100)='desc' --ÅÅÐò Ö»ÄÜÈ¡desc»òÕßasc
as
declare
@sql nvarchar(2000)
set @sql = ''
if @WhereStr = ''
set @WhereStr = '1=1'
if @PageCurrent = 0 begin
set @sql = 'select top ' + cast(@PageSize as nvarchar(3)) + ' ' + @FdShow + ' from ' + @QueryStr + ' where ' + @WhereStr + ' order by ' + @IdentityStr + ' ' + @FdOrder
end
else begin
if upper(@FdOrder) = 'DESC' begin
set @sql = 'select top ' + cast(@PageSize as nvarchar(3)) + ' ' + @FdShow + ' from ' + @QueryStr + ' where ' + @WhereStr + ' and ' + @IdentityStr + '< ( select min(' + @IdentityStr + ') from (select top ' + cast(@PageSize*@PageCurrent as nvarchar(10)) + ' ' + @IdentityStr + ' from ' + @QueryStr + ' where ' + @WhereStr + ' order by ' + @IdentityStr + ' desc) as t) order by ' + @IdentityStr + ' desc'
end
else begin
set @sql = 'select top ' + cast(@PageSize as nvarchar(3)) + ' ' + @FdShow + ' from ' + @QueryStr + ' where ' + @WhereStr + ' and ' + @IdentityStr + '> ( select max(' + @IdentityStr + ') from (select top ' + cast(@PageSize*@PageCurrent as nvarchar(10)) + ' ' + @IdentityStr + ' from ' + @QueryStr + ' where ' + @WhereStr + ' order by ' + @IdentityStr + ' asc) as t) order by ' + @IdentityStr + ' asc'
end
end
--print @sql
execute(@sql)
if(@RecordCount is null or @RecordCount<=0)begin
declare @tsql nvarchar(200)
set @tsql=N'select @RecordCount = count(*) from ' + @QueryStr + ' where ' + @WhereStr
exec sp_executesql @tsql,N'@RecordCount int output',@RecordCount output
select @Recordcount
end
GO


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sqlÓï¾ä

select *from student
select student_id from student
select student_id ,student_name from student
select student_id student_name from student  ½«student_name ×÷Ϊstudent_idµÄ±ðÃû´¦Àí
È磺   select student_id a from student
 select a=student_id from student
´Óstudent±íÖзֱð¼ ......

ÈýÖÖsql·ÖÒ³·½·¨

±íÖÐÖ÷¼ü±ØÐëΪ±êʶÁУ¬[ID] int IDENTITY (1,1)
1.·ÖÒ³·½°¸Ò»£º(ÀûÓÃNot InºÍSELECT TOP·ÖÒ³)
Óï¾äÐÎʽ£º 
SELECT TOP Ò³¼Ç¼ÊýÁ¿ *
from ±íÃû
WHERE (ID NOT IN
  (SELECT TOP (ÿҳÐÐÊý*(Ò³Êý-1)) ID
  from ±íÃû
  ORDER BY ID))
  ORDER BY ID
//×Ô¼º»¹¿ÉÒÔ¼ÓÉÏһЩ²éѯ ......

Çë½ÌÒ»¸ösql²éѯÎÊÌâ ×Ó²éѯ=ÏÔʾµÚ¶þÌõÐÅÏ¢

create database test --½¨Á¢testÊý¾Ý¿â
use test
create table BONUS --½¨Á¢
(
ENAME NVARCHAR(10),
JOB NVARCHAR(9),
SAL FLOAT,
COMM FLOAT
)
create table DEPT --½¨Á¢²¿Ãűí
(
DEPTNO SMALLINT not null, --²¿ÃűàºÅ
DNAME NVARCHAR(14), --²¿ÃÅÃû
LOC NVARC ......

SQL³£Ó÷ÖÒ³µÄ°ì·¨ ת


±íÖÐÖ÷¼ü±ØÐëΪ±êʶÁУ¬[ID] int IDENTITY (1,1)
1.·ÖÒ³·½°¸Ò»£º(ÀûÓÃNot InºÍSELECT TOP·ÖÒ³)
Óï¾äÐÎʽ£º 
SELECT TOP Ò³¼Ç¼ÊýÁ¿ *
from ±íÃû
WHERE (ID NOT IN
  (SELECT TOP (ÿҳÐÐÊý*(Ò³Êý-1)) ID
  from ±íÃû
  ORDER BY ID))
  ORDER BY ID
//×Ô¼º»¹¿ÉÒÔ¼ÓÉÏһЩ²é ......

My PL/SQL practice 8/2/10

SQLPlus  :http://www.orafaq.com/wiki/SQL*Plus_FAQ
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/sqloperations.htm
1. Transfer values from a sql scripts:
   CNT=`sqlplus -s username/password1@dbname @getUVQuery_NULLCNT`;
 
   Note : Remeber to use o ......
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