oracle自增

最新推荐文章于 2024-12-05 09:53:58 发布

tracy9171

最新推荐文章于 2024-12-05 09:53:58 发布

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创建表

CREATE TABLE “USERNAME”.“TRACY”
( “ID” VARCHAR2(20 BYTE) NOT NULL ENABLE,
“USERNAME” VARCHAR2(20 BYTE),
“PASSWORD” VARCHAR2(8 BYTE),
CONSTRAINT “TRACY_PK” PRIMARY KEY (“ID”)
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE “MYDATABASE” ENABLE
) SEGMENT CREATION IMMEDIATE
PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE “MYDATABASE” ;

创建自增列：
create sequence SEQ_ID
minvalue 2000
maxvalue 9999999999
start with 2020
increment by 1
cache 20;

insert 语句：
insert into tracy (tracy.ID,userName,password) values(SEQ_ID.nextval,‘zhangsan’,‘123456’);