The PostgreSQLCREATE TABLEstatement is used to create a new table in a database. It defines the structure of the table, including column names, data types, and constraints. This tutorial covers how to use theCREATE TABLEstatement with practical examples. TheCREATE TABLEstatement is one of the ...
http://www.yiibai.com/manual/postgresql/sql-createtable.html 名称 CREATE TABLE -- 定义一个新表 语法 CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name ( [ { column_name data_type [ DEFAULT default_expr ] [ column_constraint [ ... ] ] | table_constraint | LIKE...
This command will bring you to the PostgreSQL command prompt. Now, to create a table issue the following command. CREATE TABLE emp_data ( name text, age integer, designation text, salary integer ); The above command will create a table called emp_data with four columns - name, age, desig...
CREATE TABLE table_name ( [ { column_name data_type [ COLLATE collation ] [ column_constraint [ ... ] ] } [, ... ] ] ) where column_constraint is: [ CONSTRAINT constraint_name ] { NOT NULL | NULL | CHECK ( expression ) [ NO INHERIT ] | DEFAULT default_expr | GENERATED ALWAYS...
; CREATE TABLE MyTablePkAs WITH ('primary-key' = 'dt,hh') AS SELECT * FROM MyTablePk; ...
v_constraint_comment_record record;BEGIN-- grab the oid of the table; https://www.postgresql.org/docs/8.3/catalog-pg-class.htmlSELECTc.oid, c.relkindINTOv_table_oid, v_table_typeFROMpg_catalog.pg_class cLEFTJOINpg_catalog.pg_namespace nONn.oid=c.relnamespaceWHEREc.relkindin('r','p...
我们可以选择在 TEMPORARY 或 TEMP 前面放上 GLOBAL 或者 LOCAL。 这样对 PostgreSQL 没有任何区别,可以参阅 Compatibility [create_table(7)]。 table_name 要创建的表的名字(可以用模式修饰)。 column_name 在新表中要创建的字段名字。 data_type 该字段的数据类型。它可以包括数组说明符。
PRIMARY KEY index_parameters | REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL | MATCH SIMPLE ] [ ON DELETE referential_action ] [ ON UPDATE referential_action ] } [ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] table_constraint 是: [ ...
简介:PostgreSQL 动态表复制(CREATE TABLE AS & CREATE TABLE LIKE) 前言 项目中有表复制的需求,而且是动态复制,即在存储过程里根据参数数组的值循环复制n张结构(约束、索引等)等一致的一组表,PostgreSQL提供了两种语法来进行表复制,分别是: CREATE TABLE AS ...
Summary: in this tutorial, you will learn how to create new tables in the PostgreSQL database from a C# program. This tutorial begins where the Connecting to the PostgreSQL database from a C# program tutorial left off. How to create tables in PostgreSQL using C# To create a new table in...