postgresql alter table add constraint primary key

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postgresql alter table add constraint primary key

ALTER CONSTRAINT constraint_name [ DEFERRABLE | NOT ... 這些限制可確保索引等同於由常態的ADD PRIMARY KEY 或ADD UNIQUE 指令建立的索引。 , There are several constraint put in data when using PostgreSQL. They include the PRIMARY KEY constraints, FOREIGN KEY constraint, CHECK ...,ADD table_constraint_using_index. This form adds a new PRIMARY KEY or UNIQUE constraint to a table based on an existing unique index. All the columns of ... ,ADD table_constraint_using_index. This form adds a new PRIMARY KEY or UNIQUE constraint to a table based on an existing unique index. All the columns of ... ,ADD table_constraint_using_index. This form adds a new PRIMARY KEY or UNIQUE constraint to a table based on an existing unique index. All the columns of ... ,To add a CHECK constraint, you use ALTER TABLE ADD CHECK statement: ... TABLE IF EXISTS links; CREATE TABLE links ( link_id serial PRIMARY KEY, title ... ,ALTER TABLE ADD PRIMARY KEY約束的表的基本語法如下: ALTER TABLE table_name ADD CONSTRAINT MyPrimaryKey PRIMARY KEY (column1, ... , ,This PostgreSQL tutorial explains how to create, alter, or drop a primary key in ... ALTER TABLE order_details ADD CONSTRAINT order_details_pk PRIMARY ...

相關軟體 PostgreSQL 資訊

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postgresql alter table add constraint primary key 相關參考資料
ALTER TABLE - PostgreSQL 正體中文使用手冊

ALTER CONSTRAINT constraint_name [ DEFERRABLE | NOT ... 這些限制可確保索引等同於由常態的ADD PRIMARY KEY 或ADD UNIQUE 指令建立的索引。

https://docs.postgresql.tw

Alter Table Add Constraint – How to Use Constraints SQL ...

There are several constraint put in data when using PostgreSQL. They include the PRIMARY KEY constraints, FOREIGN KEY constraint, CHECK ...

https://kb.objectrocket.com

Documentation: 10: ALTER TABLE - PostgreSQL

ADD table_constraint_using_index. This form adds a new PRIMARY KEY or UNIQUE constraint to a table based on an existing unique index. All the columns of ...

https://www.postgresql.org

Documentation: 12: ALTER TABLE - PostgreSQL

ADD table_constraint_using_index. This form adds a new PRIMARY KEY or UNIQUE constraint to a table based on an existing unique index. All the columns of ...

https://www.postgresql.org

Documentation: 9.1: ALTER TABLE - PostgreSQL

ADD table_constraint_using_index. This form adds a new PRIMARY KEY or UNIQUE constraint to a table based on an existing unique index. All the columns of ...

https://www.postgresql.org

PostgreSQL ALTER TABLE: Modifying Table Structure By ...

To add a CHECK constraint, you use ALTER TABLE ADD CHECK statement: ... TABLE IF EXISTS links; CREATE TABLE links ( link_id serial PRIMARY KEY, title ...

https://www.postgresqltutorial

PostgreSQL ALTER TABLE命令- PostgreSQL教學 - 極客書

ALTER TABLE ADD PRIMARY KEY約束的表的基本語法如下: ALTER TABLE table_name ADD CONSTRAINT MyPrimaryKey PRIMARY KEY (column1, ...

http://tw.gitbook.net

PostgreSQL Primary Key - PostgreSQL Tutorial

https://www.postgresqltutorial

PostgreSQL: Primary Keys - TechOnTheNet

This PostgreSQL tutorial explains how to create, alter, or drop a primary key in ... ALTER TABLE order_details ADD CONSTRAINT order_details_pk PRIMARY ...

https://www.techonthenet.com