db2 add primary key

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DB2 Basic Concepts

Label:DB2 supports the following two types of tablespaces:1. System Management Memory table space (Sms-system MANAGED STORAGE)2. Database Management Memory table space (Dms-database MANAGED STORAGE)Comparison of characteristics of SMS and DMS user

DB2 Common Commands

Tags: DB2DB2 Common CommandsFirst, the basic article1. DB2 Connect to < database name >--Connect to local database nameDB2 Connect to < database name > user < username > Using < password >--connect to the remote database2. DB2

MSSQL-Logical primary key, business primary key, and composite primary key

Label:Reprinted from: http://blog.csdn.net/sunrise918/article/details/5575054These days on the logical primary key, business primary key and composite primary key have some thinking, also searched the related discussion on the net, related

DB2 and Oracle concurrency control (lock) comparison _oracle application

1 Introduction In relational databases (Db2,oracle,sybase,informix and SQL Server) the smallest recovery and transaction units are one transaction (transactions), and transactions have acid (atomicity, consistency, isolation, and permanence) characte

(RPM) DB2 HADR

Tags: interface ken does not install RAR protocol user settings Lost 5.0Transfer from http://www.ibm.com/developerworks/cn/data/library/techarticles/dm-0508luojunkai/Original: http://blog.csdn.net/deanza/article/details/8469447Standby is one of the

DB2 Key constraint operation

Label:Today encountered a problem, want to delete a table in a column of the only constraint, Google a bit, search out many, find can use, write down to summarize as follows.The command is as followsSelect Constname, TabName, ColName, colseq from

Using. NET to develop DB2 application comparisons

Comparison | program Brief introduction In the view of. NET application developers, using DB2 is no different from using any other relational database. You can see countless examples of using SQL Server and Oracle products to perform database tasks,

DB2 Database Creation Delete a PRIMARY KEY constraint and create a delete unique key constraint

Tags: Unique constraint alt ble PRIMARY KEY constraint add table LTE ons one keyCreate and delete unique constraints:DB2 "ALTER TABLE tabname add unique (colname)"DB2 "ALTER TABLE tabname drop unique Constname"To create a PRIMARY KEY constraint:DB2 "

Hibernate primary key Generation policy

Label:Hibernate provides a primary key generation strategy that allows us to set the keyword in the mapping XML file of the entity class to tell hibernate how we want to generate the primary key, and Hibernate will then complete the primary key

Probe into different points of mysql,db2,sqlserver database (i.)

Tags: display system Information Combination index DB2 lint this usage tar principleSimple comparison of mysql,db2,sqlserver database design differences, for the future to see the MySQL source code first hit the bottom, today compare database

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