db2 sequence

-- 1. Create a sequence create sequence seq_testincrement by 1 -- add a few start with 1 each time -- count nomaxvalue from 1 -- do not set the maximum value nocycle -- always accumulate, cache without loops 10 -- cache quantity -- 2. directly use the sequence insert into test values (seq_test.nextval, 'Liu bei ', 27); insert into test values (seq_test.nextval, '

This article mainly tells you about the correct installation process of DB2 pe in the Linux operating system. If you are curious about the correct installation process of DB2 pe in the Linux operating system, the following articles will unveil its mysteries. The following describes the specific solutions and hope they will help you in your future studies. This article briefly introduces the installation pro

Transaction ID in DB2 Author: anonymous time: Source: Internet Editor: XiaoYu Abstract: The transaction ID in DB2 Retrieve the unique identifier of a unit from a DB2 log

Sequence is a sequence of numbers automatically added by a database system in accordance with certain rules. This sequence is generally used as the surrogate primary key (because it is not duplicated) and has no other meaning.Sequence is the characteristic of database system, some databases have sequence, some are not.

--- Start DB2 online analysis and processing can be described very well. This function is especially suitable for various statistical queries. These queries are difficult to implement with common SQL statements, or are not implemented at all. First, let's start with a simple example to unveil its mystery step by step. Please refer to the following SQL: Select Row_number () over (order by salary) as number, Name as name, Dept as department, Salar

Prior to DB2 for Linux, UNIX, and Windows Version 8, SAP customers can install only one copy of each DB2 version on a single physical machine, because the installation path is hard coded. Although DB2 Version 8 provides replacement revision package images, these images are used only for testing, and SAP does not support them in production environments. For

Transfer 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 high availability (Ha,high availability) technologies (and snapshot and mirror). It is similar in principle to Oracle's data guard, providing a standby mode that allows another server to receive logs from the "Master" system and update it to the standby database for data sy

This article mainly describes several of the most common operation methods for updating the DB2 execution plan. Like the Oracle database, the DB2 database also uses an optimizer to analyze SQL statements, generate an Access Plan ). The DB2 optimizer is actually a set of standard rules. Generally, we only need to tell DB2