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 option "-s" (-s or -silent -- start sqlplus in silent mode. Not recommended for beginners!)
if not use "-s" , will return something as below :
SQL*Plus: Release 10.2.0.3.0 - Production on Tue Feb 9 11:03:08 2010
Copyright (c) 1982, 2006, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
0
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
2.getUVQuery_NULLCNT.sql
set term off
column cnt noprint new_value total
SELECT count(inquiry_id) cnt
from inquire_all_current a
WHERE FORM_COMPLETE_STATUS = 'Y'
and ITEM_POPULATE_STATUS = 'N'
and expand_type='uvall'
and uv_query is null
ORDER BY INQUIRY_ID ASC;
set term on
prompt &total
exit
3. Define cursor and use cursor:
DECLARE
CURSOR cur IS
SELECT inquiry_id
from inquire_all_current a
WHERE FORM_COMPLETE
相关文档：
1、在数据库建表的时候字段直接设置为DATETIME类型；
2、执行插入的时候使用如下语句：
PreparedStatement pstmt = conn.prepareStatement("insert into guestbook(gst_user,gst_title,gst_content,gst_ip,gst_time) values(?,?,?,?,getdate())");
3、要把日期从数据库中取出，执行如下语句：
......
MS SQL Server2000 数据源配置
（注：sqljdbc.jar下载不到的话，找我索取pengqinghui110@126.com)
1、在项目的WebRoot下的META-INF中新建context.xml文件。内容如下：
<?xml version="1.0" encoding="UTF-8"?>
<Context>
<Resource name="jdbc/sqlserver"
&nbs ......
select *from student
select student_id from student
select student_id ,student_name from student
select student_id student_name from student 将student_name 作为student_id的别名处理
如： select student_id a from student
select a=student_id from student
从student表中分别� ......
----start
通常SQL PL只能使用在存储过程、触发器、用户自定义函数中，但是有一部分SQL PL也可以直接在命令行编辑器或脚本中使用，它们是：
DECLARE <variable>
SET
CASE
FOR
GET DIAGNOSTICS
GOTO
IF
RETURN
SIGNAL
WHILE
ITERATE
LEAVE
以下SQL PL不能直接在命令行编辑器或 ......
表中主键必须为标识列，[ID] int IDENTITY (1,1)
1.分页方案一：(利用Not In和SELECT TOP分页)
语句形式：
SELECT TOP 页记录数量 *
from 表名
WHERE (ID NOT IN
(SELECT TOP (每页行数*(页数-1)) ID
from 表名
ORDER BY ID))
ORDER BY ID
//自己还可以加上一些查 ......
