create [public | private] synonym [if not exists] <synonym_name> for <table_name | view_name | sequence_name>; 删除同义词 drop synonym [if exists] <synonym_name>; DEMO drop table if exists t_user; create table t_user(f_userid int, f_username varchar(20)); drop synonym if exists...
第一种方法是先删除外键表中的数据，然后再删除当前表的数据。例如，假设我们有两个表t1和t2，其中t2的id1字段是t1的id字段的外键。首先，我们需要先删除t2表中的数据，然后才能删除t1表中的数据。以下是具体的SQL语句示例：创建表和插入数据：drop table if exists t1; drop table if exists t2;cr...
数据准备 drop table if exists t_dept; create table t_dept(f_deptid int, f_deptname varchar(50)); insert into t_dept values(1, 'Dev'); insert into t_dept values(2, 'Test'); insert into t_dept values(3, 'Market'); drop table if exists t_employee; create table t_employee(f_e...
drop table if exists mea_hash_range cascade; create table mea_hash_range ( city_id int,logdate timestamp,id int) partition by hash(id) subpartition by range(logdate) ( partition meas_y2021 (subpartition p12 values less than ('2021-02-04 12:00:00'),subpartition p13 values less than (...
create table t_dept(f_deptid int, f_deptname varchar(50)); insert into t_dept values(1, 'Dev'); insert into t_dept values(2, 'Test'); insert into t_dept values(3, 'Market'); drop table if exists t_employee; create table t_employee(f_employeeid int, f_deptid int, f_employee...
create table mea_hash ( city_id int,logdate timestamp,id int ) partition by hash(id) ( partition p1 , partition p2 ); --二级分区 hash-list,hash-hash, hash-range drop table if exists mea_hash_list cascade; create table mea_hash_list ( city_id int,logdate timestamp,id int) partiti...
--创建基础表set environment sqlmode 'oracle';drop table if exists emp;drop table if exists dept;create table emp(id int primary key, name varchar2(20),sex varchar(1),sal number(32,0),deptid int, job varchar2(50),hiredate date);create table dept(deptid int primary key,deptname varchar...
测试 准备数据 droptableifexistst_orders;createtablet_orders ( idintprimarykeyauto_increment, userIdint, orderIdvarchar(20) );insertintot_orders(userId, orderId)values(1,'100');insertintot_orders(userId, orderId)values(1,'101');insertintot_orders(userId, orderId)values(1,'102');insert...
-- 一级 hash 分区drop table if exists mea_hash cascade;create table mea_hash ( city_id int,logdate timestamp,id int ) partition by hash(id) ( partition p1 , partition p2 );--二级分区 hash-list,hash-hash, hash-rangedrop table if exists mea_hash_list cascade;create table...
/*执行存储过程*/void demo_3(void){GBASE* gbase = NULL;char* sql_drop = "drop table if exists g_demo3";char* sql = "create table g_demo3(a varchar(10), b int)";char* p_drop = "DROP PROCEDURE IF EXISTS demo_p";char* p = "create procedure demo_p(in a varchar(10), \ ...