db2 drop table

The following articles mainly introduce some issues that need attention when using the DB2 temporary table. The following describes some issues that need attention when using the DB2 temporary table, I hope it will be helpful in your future study. If you are interested in it, you can click the following article to view

discuss how to organize the buffer pool and tablespace to get the best performance. Section 1th: Defining Table Space All of the data in the database is stored in many table spaces. You can think of a table space as a child and a database as its parent, in which table spaces (children) cannot have multiple database

DB2 database creation and table ixf File Export Import example, db2ixf 1. Create a database [Db2inst1 @ localhost ~] $ Db2set db2codepage = 1208 # Set Encoding [Db2inst1 @ localhost ~] $ Db2 create database wms automatic storage yes using codeset UTF-8territory cn pagesize 32768 # create wms database // Specify the db2

Batch DB2 User table authorization1. Create a user[Root @ localhost ~] # Passwd ghanChanging password for user ghan.New UNIX password:Bad password: it is too shortRetype new UNIX password:Passwd: all authentication tokens updated successfully.[Root @ localhost ~] # Su-db2inst2[Db2inst2 @ localhost ~] $ Db2 connect to ghan user ghanEnter the current ghan password:

Batch authorization of DB2 user tables. DB2 user table batch authorization 1. create a user [root @ localhost ~] # PasswdghanChangingpasswordforuserghan. NewUNIXpassword: BADPASSWORD: itistooshortRetypenewUNIXpasswo DB2 user table batch authorization 1. create a user [Root

The following articles mainly introduce the coexistence of DB2 databases and describe the configuration of tables for the occurrence of the coexistence of DB2 databases. The following is a detailed description of the main content of this article, I hope you will have a better understanding of it after browsing. DB2 database Synchronization Collocation is used to

1. Open the cmd command window, enter d: db2 under the db2 installation directory, and run the command: DB2CMD to enter the db2 CLP window. Www.2cto.com 2. create a data folder command: mkdir data description: export the SQL statement of the full table structure of the database to the data directory 3. enter the data d

Label:1: Delete field non-empty propertyALTER TABLE XXX ALTER COLUMN XXX drop NOT NULLThis feature requires a version of DB2 9.0 or more2: Add field non-empty propertyALTER TABLE XXX ALTER COLUMN XXX set NOT NULL3: Add a new fieldALTER TABLE XXX add column XXXX varchar (100)

For DB2 databases, importing and exporting table structures and data is simply a matter of using only the Db2look and db2move two commands. Both commands need to be executed in the client's command-line processor, but for the database server and the client are not on the same machine, the catalog command needs to be completed to load the remote database locally before the export import operation.If it is a

DB2 database system to build the table, there will inevitably be the data in the table to clear the demand, this article will introduce you to the DB2 database of four methods of data deletion, for your reference, you can choose according to the actual situation, hope to be helpful.1. Use the DELETE statement, which is

DB2 materialized query table MQT) is a special type of table in the DB2 database. The following describes the knowledge of the materialized query table in DB2 and hopes to help you. 1. Differences between materialized query tables

1. Add a fieldALTER TABLE [table_name] add [column_name] [Column_type]2. Change the field typeALTER TABLE [TABLE_NAME] ALTER COLUMN [COLUMN_NAME] Set data type [Column_type]Note: Changes to the field type are limited, such as changing the field to be larger than the previous type, if you want to change the size or change the decimal length, you must first drop th

The following articles describe how to restore and Delete tables in DB2. In actual operations, the DB2 database stores backups and restores data in historical files, and operations such as loading data and deleting tables. if the database name is sample, you can use the following command to list the records of the table to be deleted:

The following describes the DB2 update statements used to update records in the same table. This DB2 update statement is for your reference and may help you learn about the DB2 update statements. Two DB2 update statements are used to update other records that meet the condit

Label:1. Open the DB2 command line using Db2cmd2.db2look-d db_name-e-a-x-i db_username-w db_passwd-0 file_name.sql #导出数据库结构3.db2move db_name export-u db_username-p db_passwd #导出数据库数据4. Create database db_name on ' directory_name ' using codeset utf-8 territory US collate using System; # IBM-EUCJP--An encoding format5.create schema sch_name authorization sch_passwd; #设置权限6.DB2 Connect to db_name user usernam

DB2 alter: Add/delete/Reset Column 1. Add Fields Alter table [table_name] add [column_name] [column_type] 2. Change the field type Alter table [table_name] alter column [column_name] Set Data Type [column_type] Note: There are restrictions on changing the field type. For example, you can change the field to be larger than the previous type length. to change

---- Start The DB2 materialized query table MQT (materialized query tables) stores the results of a query. When we query related tables, DB2 automatically determines whether to use the original table or materialized query table. When the database contains massive data, using

1. Create a database [Db2inst1@localhost ~]$ db2set db2codepage=1208 #设置编码 [Db2inst1@localhost ~]$ DB2 CREATE DATABASE WMS Automatic Storage Yes using CodeSet utf-8territory cn pagesize 32768 #创建wm s database Specify the DB2 database installation directory DB2 Create DB xxdb On/app/dbdata using CODEPAGE "GBK" Country "ZH_CN" 2. Export the ixf file of the

Method 1 for modifying a column in a DB2 table as an auto-increment primary key) to change a column in the table to auto-increment, run the following command: Alter table The above command is useful online when you change the attributes of a column in a table. 2) When you m

Tags: Observing judging condition count Note ROM Index tar link The source of this article: http://www.cnblogs.com/wy123/p/6704619.html Issue background In a write SQL Server stored procedure, if a temporary table is defined in the stored procedure,Some people are used to explicitly delete a temporary table defined in the process at the end of the stored Procedure (dr