db2 | 易学教程

github php buildpack supporting DB2 and IBM Cloud php app

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问题 We have a PHP app on IBM Cloud connected to an instance of DB2 (also on IBM Cloud) that has been working flawlessly for 2 years Up until Sept 16th, we used the buildbpack with our PHP app (so that it could connect to DB2 via the db2_connect PHP function.) Now after the cflinuxfs3 upgrade that buildpack does not work and we are forced to use the " "php_buildpack" community buildpack already installed in Cloud Foundry". however, This new buildpack does not support DB2 connections. When trying

JPA 2.0 Provider Hibernate 3.6 for DB2 v9.5 type 2 driver is throwing exception in configuration prepration

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问题 The JPA 2.0 Provider Hibernate is throwing exception while preparing configuration for entity manager factory, I am using DB2 v9.5 database and DB2 v9.5 JDBC type 2 driver . java.sql.SQLException: [IBM][JDBC Driver] CLI0626E getDatabaseMajorVersion is not supported in this version of DB2 JDBC 2.0 driver. at COM.ibm.db2.jdbc.app.SQLExceptionGenerator.throwNotSupportedByDB2(Unknown Source) at COM.ibm.db2.jdbc.app.DB2DatabaseMetaData.getDatabaseMajorVersion(Unknown Source) at org.hibernate.cfg

Strange behaviour for db2 query for timestamp data type

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问题 I want to query for timestamp data type in db2. I wrote query below Select * from sample where LASTMODIFIEDDATE = timestamp('2012-04-03 07:59:50') I didn't get any result for above query , then I tried Select * from sample where LASTMODIFIEDDATE > timestamp('2012-04-03 07:59:50') In above query I got results matching timestamp '2012-04-03 07:59:50' plus for greater values of timestamp, e.g '2012-04-03 08:59:50'. If I am getting results for '>' operator then why not I am not getting any

Subquery to return the latest entry for each parent ID

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Inserting current Database date time via Entity framework

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问题 We want to put the current datetime into a database column. We have a web farm where the time on the web servers can vary, we therefore need to use the datetime on the database server. We have a database with a Not Null datetime column. This column has a default datetime of current time. This works fine when we insert data using a SQL statement that does not include the datetime column. From Entity Framework: If we define the datetime as not null , the datetime is set to low date, and low

DB2 SQLCODE=-805, SQLSTATE=51002, SQLERRMC=NULLID.SYSLH203 0X5359534C564C3031

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问题 I am getting this error below : com.ibm.db2.jcc.am.SqlException: DB2 SQL Error: SQLCODE=-805, SQLSTATE=51002, SQLERRMC=NULLID.SYSLH203 0X5359534C564C3031, DRIVER=3.58.81 in the execution of application after a certain point of time. Not got any fruitful answer on the web. 回答1: This is an indication that the application is running out of resources; possibly due to not closing connections (too many prepared statements or other such poor programming). If you have access to the application,

Escape percentage sign DB2 SQL

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问题 I am trying to select data containing four percentage signs in a row. How can I escape the percentage signs so my LIKE condition works? Thanks 回答1: Use @% with the escape character clause: select * from tbl where fld like '%@%%' escape '@' This will search for all records that contain the "%" character in the fld column. DB2/z has a slightly different format: select * from tbl where fld like {escape '@'} '%@%%' Obviously, you'll need to choose your escape character carefully so it won't

ubuntu 64 装db2 v9.7 server

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抓紧下载v9.7_linuxx64_server.tar.gz,扔到~/Downloads/java_soft 进入到该目录执行 tar -xf v9.7_linuxx64_server.tar.gz 会发现在该目录下多出一个server目录 cd server sudo ./db2_install -b /opt/ibm/db2/v9.7 按照提示输入 ESE 耐心等待约1分钟，成功！ db2ls 哈哈。列出了我已经安装的两个版本！！！待续。。。见～/Downloads/books/db2/DB2学习笔记.doc,从百度文档下的。没法上传附件。就这样，写得很详细了。。建das的时候报错： root@cyper-pc:/opt/ibm/db2/v9.7/instance# useradd -g db2agrp -u 803 -d /home/db2das -m -s /bin/sh db2das root@cyper-pc:/opt/ibm/db2/v9.7/instance# passwd db2das Enter new UNIX password: Retype new UNIX password: passwd: password updated successfully root@cyper-pc:/opt/ibm/db2/v9.7/instance# .

db2 发生“57016: 因为表不活动，所以不能存取它” 解决方法

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今天将测试环境一个表的字段删除掉了，结果再对该表进行插入操作时，报错“57016: 因为表不活动，所以不能存取它”，解决方法为：进入db2控制中心（开始-运行-db2cc）,点击工具-命令编辑器菜单，连接数据库后，执行reorg table xxx;即可解决该问题。来源： oschina 链接： https://my.oschina.net/u/991158/blog/178809

卸载db2 v9.7　～　V10.5

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Following are the steps to remove DB2 from Unix/Linux: cyper: Ubuntu 12.04LTS测试通过 1.Remove DB[首先删除数据库] (1)su - db2inst1 (2)db2 list db directory (3)db2 drop db <db name> 2.Remove Instance【删除实例】 (1)su - root (2)cd <db2 dir>/instance (3)./db2ilist (4)./db2idrop -f <instance name> 3.Remove das【删除das】 (1)su - root (2)cd <db2 dir>/instance (3)./daslist (4)./dasdrop <das user> 4.Uninstall【卸载】 (1)su - root (2)cd <db2 dir>/install (3)./db2_deinstall -a 5.Remove user ( db2inst1,db2fenc1,dasusr1)【删除用户】 userdel -r <username> please lookinto the file /etc/passwd before and after you deleted users Cyper