Syntax CREATE [OR REPLACE] [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name (create_definition,...) [table_options ]... [partition_options] CREATE [OR REPLACE] [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)] [table_options ]... [partition_options] select_statement ...
TheCREATE TABLEsyntax has been extended to permit creating a system-versioned table. To be system-versioned, according to SQL:2011, a table must have two generated columns, a period, and a special table option clause: CREATETABLEt( x INT, start_timestampTIMESTAMP(6)GENERATEDALWAYSASROWSTART, ...
一、数据库管理语句 1、Syntax: CREATE {DATABASE | SCHEMA} [IF NOT EXISTS] db_name [create_specification] ... create_specification: [DEFAULT] CHARACTER SET [=] ch
MariaDB [(none)]>help create table; Name:'CREATE TABLE'Description: Syntax: CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name (create_definition,...) [table_options] [partition_options] Or: CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)] [table_options] [...
Can’t create database ‘dicdb’; database exists 数据库已经存在,不能再次创建 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘valuse (null,“ls”,“列出”)’ at line 1 ...
1.UPDATE 只支持单对象更新,即支持 "single-table-syntax",不支持 "multiple-table-syntax"。 2.只支持单机场景,XA 场景之后的迭代版本由 proxy 实现。 3.INSERT 的三种语法都支持,这里只列举一种。 4.标准语法参考官方标准:UPDATE Syntax、INSERT Syntax。
语法: GROUP_CONCAT([DISTINCT] column_name [ORDER BY 序字段 ASC/DESC] [SEPARATOR '分隔符']) 注:测试时发现,排序似乎不起作用 实践 构造数据: CREATE TABLE tb_test( order_id INT, goods_id INT, user_name VARCHAR(7) ); INSERT INTO tb_test VALUES(1000000001, 1, '授客'), (1000000001, 2...
公用表达式(Common Table Expressions,简称CTE) Maria DB 版本为10.2.2以上的才支持WITH语法 CTE 介绍 WITH关键字表示公用表表达式(CTE) 它使您可以在查询中多次引用子查询表达式,就好像有一个仅在查询期间存在的临时表一样。 语法(Syntax) WITH[RECURSIVE] table_referenceas(SELECT...)SELECT... ...
1149 42000 ER_SYNTAX_ERROR You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use 1150 HY000 ER_DELAYED_CANT_CHANGE_LOCK Delayed insert thread couldn't get requested lock for table %s 1151 HY000 ER_TOO_MANY_DELAYE...
Connection String Syntax: DATABASE_URL=mysql://[[user]:[password]@]host[:port][/database] If your password contains special characters, you will need to use percentage encoding. !#$%&'()*+,/:;=?@[] %21%23%24%25%26%27%28%29%2A%2B%2C%2F%3A%3B%3D%3F%40%5B%5D ...