mysql> create table uu(id int unsigned not null primary key auto_increment, user_name varchar(15) not null)auto_increment=100; Query OK, 0 rows affected (0.01 sec) mysql> === mysql>insert into uu(id,user_name) values(1, 'jojo'); Query OK, 1 row affected (0.00 sec) mysql>insert...
在MySQL数据库中，关于表的克隆有多种方式，比如我们可以使用create table ..as .. ，也可以使用create...
primary_zone指定主 Zone(副本 Leader 所在 Zone)。 replica_num指定副本数。 table_tablegroup指定表所属的 Table Group。 AUTO_INCREMENT指定表中自增列的初始值。 comment注释。 LOCALITY描述副本在 Zone 间的分布情况,如:F@z1、F@z2、F@z3、R@z4表示z1、z2、z3为全功能副本,z4为只读副本。
$sql="CREATE TABLE runoon_tbl( ". "runoon_id INT NOT NULL AUTO_INCREMENT, ". "runoon_title VARCHAR(100) NOT NULL, ". "runoon_author VARCHAR(40) NOT NULL, ". "submission_date DATE, ". "PRIMARY KEY ( runoon_id ))ENGINE=InnoDB ...
increment 是向装载的前一行的标识值中添加的增量值。 NOT FOR REPLICATION 在CREATE TABLE 语句中,可为 IDENTITY 属性、FOREIGN KEY 约束和 CHECK 约束指定 NOT FOR REPLICATION 子句。如果为 IDENTITY 属性指定了该子句,则复制代理执行插入时,标识列中的值将不会增加。如果为约束指定了此子句,则当复制代理执行插入...
Environment Liquibase Version: 4.7.0 Database Vendor & Version: H2 2.0.206 Description When using a liquibase changeset containing primary auto increment keys a wrong create table statement is being generated. Steps To Reproduce Have a c...
] referenced_table_name [ ( ref_column ) ] | CHECK ( logical_expression ) } <table_constraint> ::= [ CONSTRAINT constraint_name ] { { PRIMARY KEY | UNIQUE } { NONCLUSTERED ( column_name [ ASC | DESC ] [ ,... n ]) | NONCLUSTERED HASH ( column_name [ ,... n ] ) WITH ...
阅读下面SQL代码: CREATE TABLE student( id INT(3) PRIMARY KEY AUTO_INCREMENT, name VARCHAR(20) NOT NULL, grade FLOAT, ); 下面选项中,用于查询表中所有记录信息的SQL语句是相关知识点: 试题来源: 解析 SELECT id,name,grade FROM student;SELECT * FROM student; ...
table (table-element-commalist) [shard-key] [WITH table-option-commalist] table-element ::= [%DESCRIPTION string] [%FILE string] [{%EXTENTSIZE | %NUMROWS} integer] [%PUBLICROWID] [%ROUTINE string] { fieldname datatype [AUTO_INCREMENT] | IDENTITY | SERIAL | ROWVERSION ...
For information about AUTO_INCREMENT and MySQL Replication, see Section 16.4.1.1, “Replication and AUTO_INCREMENT”. COMMENT A comment for a column can be specified with the COMMENT option, up to 1024 characters long. The comment is displayed by the SHOW CREATE TABLE and SHOW FULL COLUMNS...