{{htmlmetatags>
metatag-description=(일련번호, Serial Number, 자동 증가, Auto Increment, 시퀀스, Sequence, 데이터베이스, DBMS, SQL, MySQL, MariaDB, MSSQL, Oracle, Tibero, PostgreSQL)
metatag-og:description=(일련번호, Serial Number, 자동 증가, Auto Increment, 시퀀스, Sequence, 데이터베이스, DBMS, SQL, MySQL, MariaDB, MSSQL, Oracle, Tibero, PostgreSQL)
}}

====== 일련번호 생성 ======

<note tip>
최소 지원 버전은 약간의 차이가 있을 수 있습니다.\\
- MySQL/MariaDB, PostgreSQL: 세부 버전까지 표시\\
- MSSQL, Oracle/Tibero: 제품 버전까지 표시
</note>

===== 테이블 명세 =====
^  논리명  ^  물리명  ^  타입  ^  길이  ^  KEY  ^
| 일련번호 | sn | 숫자형 | | PK |
| 값 | value | 문자형 | 100 | |

===== MySQL/MariaDB =====
==== 자동 증가 ====
<sxh sql; gutter: true; title: DDL;>
/*
	MySQL 3.0 이상/MariaDB 5.1 이상
*/
CREATE TABLE ex_serial_number (
	sn BIGINT AUTO_INCREMENT NOT NULL PRIMARY KEY,
	value VARCHAR(100) NOT NULL
);
</sxh>

<sxh sql; gutter: true; title: DML;>
INSERT INTO ex_serial_number (value) VALUES ('값');
</sxh>

==== 시퀀스 ====
<sxh sql; gutter: true; title: DDL;>
CREATE TABLE ex_serial_number (
	sn BIGINT NOT NULL PRIMARY KEY,
	value VARCHAR(100) NOT NULL
);

/*
	MariaDB 10.3 이상
*/
CREATE SEQUENCE ex_serial_number_seq
	START WITH 1
	INCREMENT BY 1
	MINVALUE 1
	MAXVALUE 9223372036854775806 -- 최댓값은 Signed BIGINT - 1
	NOCYCLE
	CACHE 20
;
</sxh>

<sxh sql; gutter: true; title: DML;>
INSERT INTO ex_serial_number (sn, value) VALUES (NEXT VALUE FOR ex_serial_number_seq, '값');
-- INSERT INTO ex_serial_number (sn, value) VALUES (NEXTVAL('ex_serial_number_seq'), '값');
</sxh>

===== MSSQL =====
==== 자동 증가 ====
<sxh sql; gutter: true; title: DDL;>
/*
	MSSQL 7.0 이상
*/
CREATE TABLE ex_serial_number (
	sn BIGINT IDENTITY (1, 1) NOT NULL PRIMARY KEY,
	value VARCHAR(100) NOT NULL
);
</sxh>

<sxh sql; gutter: true; title: DML;>
INSERT INTO ex_serial_number (value) VALUES ('값');
</sxh>

==== 시퀀스 ====
<sxh sql; gutter: true; title: DDL;>
CREATE TABLE ex_serial_number (
	sn BIGINT NOT NULL PRIMARY KEY,
	value VARCHAR(100) NOT NULL
);

/*
	MSSQL 2012 이상
*/
CREATE SEQUENCE ex_serial_number_seq
	AS BIGINT
	START WITH 1
	INCREMENT BY 1
	MINVALUE 1
	MAXVALUE 9223372036854775806 -- 최댓값은 Signed BIGINT - 1
	NO CYCLE
	CACHE 20
;
</sxh>

<sxh sql; gutter: true; title: DML;>
INSERT INTO ex_serial_number (sn, value) VALUES (NEXT VALUE FOR ex_serial_number_seq, '값');
</sxh>

===== Oracle/Tibero =====
==== 자동 증가 ====
<sxh sql; gutter: true; title: DDL;>
-- Oracle 12c 이상
CREATE TABLE ex_serial_number (
	sn NUMBER GENERATED ALWAYS AS IDENTITY NOT NULL PRIMARY KEY,
	value VARCHAR(100) NOT NULL
);
</sxh>

<sxh sql; gutter: true; title: DML;>
INSERT INTO ex_serial_number (value) VALUES ('값');
</sxh>

==== 시퀀스 ====
<sxh sql; gutter: true; title: DDL;>
CREATE TABLE ex_serial_number (
	sn NUMBER NOT NULL PRIMARY KEY,
	value VARCHAR(100) NOT NULL
);

/*
	Oracle 8i 이상/Tibero 6 이상
*/
CREATE SEQUENCE ex_serial_number_seq
	START WITH 1
	INCREMENT BY 1
	MINVALUE 1
	MAXVALUE 9999999999999999999999999999 -- 최댓값은 양의 정수 28자리
	NOCYCLE
	CACHE 20
	NOORDER
;
</sxh>

<sxh sql; gutter: true; title: DML;>
INSERT INTO ex_serial_number (sn, value) VALUES (ex_serial_number_seq.NEXTVAL, '값');
</sxh>

===== PostgreSQL =====
==== 자동 증가 ====
<sxh sql; gutter: true; title: DDL;>
/*
	PostgreSQL 8.4 이상
*/
CREATE TABLE ex_serial_number (
	sn BIGSERIAL NOT NULL PRIMARY KEY,
	value VARCHAR(100) NOT NULL
);

/*
	PostgreSQL 10 이상
*/
CREATE TABLE ex_serial_number (
	sn BIGINT GENERATED ALWAYS AS IDENTITY NOT NULL PRIMARY KEY,
	value VARCHAR(100) NOT NULL
);
</sxh>

<sxh sql; gutter: true; title: DML;>
INSERT INTO ex_serial_number (value) VALUES ('값');
</sxh>

==== 시퀀스 ====
<sxh sql; gutter: true; title: DDL;>
CREATE TABLE ex_serial_number (
	sn BIGINT NOT NULL PRIMARY KEY,
	value VARCHAR(100) NOT NULL
);

/*
	PostgreSQL 6.0 이상
*/
CREATE SEQUENCE ex_serial_number_seq
	START WITH 1
	INCREMENT BY 1
	MINVALUE 1
	MAXVALUE 9223372036854775806 -- 최댓값은 Signed BIGINT - 1
	NO CYCLE
	CACHE 20
;

/*
	PostgreSQL 10.0 이상
*/
CREATE SEQUENCE ex_serial_number_seq
	AS BIGINT
	START WITH 1
	INCREMENT BY 1
	MINVALUE 1
	MAXVALUE 9223372036854775806 -- 최댓값은 Signed BIGINT - 1
	NO CYCLE
	CACHE 20
;
</sxh>

<sxh sql; gutter: true; title: DML;>
INSERT INTO ex_serial_number (sn, value) VALUES (NEXTVAL('ex_serial_number_seq'), '값');
</sxh>

{{tag>"쿼리" "Query" "기본"}}