DB2 数据库知识

1. 修改主键自增加的初始值

--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. 修改主键为自增加

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

3.建立索引

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