DB2 数据库知识

1. 修改主键自增长的初始值

--获取最大的id值
select max(tel_id) from tm_contact_tel
--修改初始值
ALTER TABLE ACCOUNT ALTER COLUMN ACCOUNTID RESTART WITH 1104

2. 修改主键为自增长

Alter table <table name> alter  <column name> set generated always as identity

3.创建索引

CREATE INDEX "CTS"."TM_COLL_UINT_HIST_INDEX"
ON
"CTS"."TM_COLL_UNIT_HIST"
(
"CUST_ID"
);