CREATE TABLE `t1` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(100) DEFAULT NULL, `ts` timestamp(6) GENERATED ALWAYS AS ROW START, `te` timestamp(6) GENERATED ALWAYS AS ROW END, PRIMARY KEY (`id`,`te`)
create table t6( id int primary key, name varchar(20) ); insert into t6 values (1, “hello”); insert into t6 values (1, “world”); 报错:不能重复 insert into t6 values (null, “world”); 报错:不能为空 自增长 auto_increment create table t7( id int primary key auto_increment,...
Database changed mysql>CREATETABLEproducts_tbl(->product_idINTNOTNULLAUTO_INCREMENT,->product_nameVARCHAR(100)NOTNULL,->product_manufacturerVARCHAR(40)NOTNULL,->submission_dateDATE,->PRIMARYKEY ( product_id )->); mysql>SHOWTABLES;+---+|PRODUCTS|+---+|products_tbl|+---+ 确保所有命令都以分...
CREATE TABLE IF NOT EXISTS CREATE TEMPORARY TABLE CREATE TABLE ... LIKE CREATE TABLE ... SELECT Column Definitions Note: NULL and NOT NULL DEFAULT Column Option AUTO_INCREMENT Column Option ZEROFILL Column Option PRIMARY KEY Column Option UNIQUE KEY Column Option COMMENT Column Option REF_SYSTEM...
CREATE DATABASE hc_db; CREATE TABLE hc_tbl(a INT PRIMARY KEY, b INT, c INT); CREATE TABLE hc_tbl_2(a INT PRIMARY KEY, b INT, c INT); 2.5.1 INSERT 示例 INSERT COMMIT_ON_SUCCESS ROLLBACK_ON_FAIL QUEUE_ON_PK1INTO hc_tbl VALUES(1,1,1); ...
CREATETABLEtest.t1(idINTPRIMARYKEYAUTO_INCREMENT,nameVARCHAR(50))ENGINE=SpiderCOMMENT='wrapper "mysql", table "t1"'PARTITIONBYHASH(id)(PARTITIONpt1COMMENT='srv "dataNode1"',PARTITIONpt2COMMENT='srv "dataNode2"'); 第三步:插入测试数据
MariaDB [yinzhengjie]> CREATE TABLE students(id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,name VARCHAR(30) NOT NULL,sex ENUM('boy','girl') DEFAULT 'boy',age TINYINT UNSIGNED,mobile CHAR(11),address VARCHAR(50)); 4>.往"students"表中插入数据 MariaDB [yinzhengjie]> INSERT INTO students (na...
baseurl = https://mirrors.aliyun.com/mariadb/yum/10.4/centos7-amd64/gpgkey=https://mirrors.aliyun.com/mariadb/yum/RPM-GPG-KEY-MariaDB gpgcheck=1 保存,退出 2.清除缓存,加载配置 yum clean all yum makecache 3.安装mariadb (阿里源的mariadb包名是小写的,而官方源是大写的) ...
3、不支持Reserved keywords保留关键字user、comment、match、key、update、status作为表名、字段名或用户定义的变量、函数或存储过程的名称。 4、不支持zerofill 5、不支持enum枚举类型 6、comment不能携带''引号 create table t1(id int comment '主键''ID')engine=Columnstore; 7、不支持主键自增 SQL语句限制 1...
create table encrypt_t(id int, name varchar(32)) ENCRYPTED=YES ENCRYPTION_KEY_ID=3; 修改不加密的表为加密: alter table unencrypt_t ENCRYPTED=YES ENCRYPTION_KEY_ID=3; 修改加密的表为不加密: alter table unencrypt_t ENCRYPTED=NO; 插入数据: ...