db2 wildcard

lesson sixth filtering with wildcard characters6.1 Like operatorThe wildcard itself is actually a character that has special meanings in the WHERE clause of SQL, and SQL supports several wildcard characters. To use wildcard characters in a search

This article mainly describes how to optimize the performance of DB2 application systems. We all know that DB2 database is a high-performance large-scale relational DB2 management system, it is widely used in the customer/server architecture. The

1. Use db2cmd to open the db2 command line 2. db2look-d db_name-e-a-x-I db_username-w db_passwd-0 file_name. SQL # export the database structure 3. db2move db_name export-u db_username-p db_passwd # export Database Data 4. create database db_name on

What is a regular expression?Regular expressions are used to find and replace patterns in strings. The regular expression is defined in a certain syntax, and the regular expression engine uses this syntax and compares it to a string. The engine

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

The name of the student who queried the surname "Liu" and whose full name is 2 characters: SELECT Sname From Student WHERE Sname like ' Liu __ '; Why is there no result? I changed the two lines to a% after the results come out, is it not in the DB2

Export all DDL scripts of the database in DB2 Run the db2look command to obtain the DDL script of the database object. DB2's db2look command is interpreted as follows:Db2look 8.2Db2look: Generate DDLTo recreate the objects defined in the

Syntax: db2look-d DBname [-e] [-xs] [-xdir Path] [-u Creator] [-Z Schema] [-t Tname1 Tname2 ... Tnamen] [-TW tname] [-h] [-O Fname] [-A] [-M] [-c] [-R] [-l] [-X] [-xd] [-F] [-FD] [-td x] [-noview] [-I UserID] [-W Password] [-V Vname1 Vname2 .

1, Understand sql1.1 Database Foundation 1.1.1 Database: A container that holds organized data (usually a file or a set of files) (also understood as a collection that is stored in an organized manner)Note: Database software is called DBMS (Database

Simple examples of db2look and Db2move---building a libraryCreate database db_name on filesystem_location using codeset Utf-8 territory CN---delete a libraryDB2 Drop DB db_name(If the database is in use, you need to execute the following command