SQL INSERT statement – insert one row into a table The following illustrates theINSERTstatement that inserts a single row into an existing table. INSERTINTOtable(column1, column2,...)VALUES(value1, value2,...);Code language:SQL (Structured Query Language)(sql) ...
看完这篇文章你会学习到以下内容: 1. 在创建或者写复杂逻辑时,做好备份 两种方法介绍: 1)INSERT INTO Table SELECT * FROM TABLE 2)CREATE TABLE AS ... ... Select * from TABLE 两者区别: INSERT INTO …
INSERT INTO users_distributed (user_id, username) VALUES (1, 'Alice'); (2) 范围分布策略 -- 创建范围分布表 CREATETABLEsales_distributed ( sale_date DATE, amount NUMERIC(10,2) ) DISTRIBUTE BY RANGE(sale_date); -- 插入跨分区数据 INSERT INTO sales_distributed (sale_date, amount) VALUES...
INSERT INTO Syntax It is possible to write theINSERT INTOstatement in two ways: 1. Specify both the column names and the values to be inserted: INSERTINTOtable_name(column1,column2,column3, ...) VALUES(value1,value2,value3, ...); ...
1: alter procedure Performance_Issue_Table_Variables 2:as 3: begin 4: SET NOCOUNT ON; 5: declare @table table(empidint, empname varchar (25),Department varchar (25) ,Salaryint) 6: insert into @table select S.empid,S.empname,T.deptname,S.salary from Employees s inner join Departments...
sql中 insert 和 insert into 的区别有看到INSERT INTO TABLE VALUES('','',...)和INSERT TABLE (栏位1
-- Existing table CREATE TABLE Department_History ( DepartmentNumber CHAR (10) NOT NULL, DepartmentName VARCHAR (50) NOT NULL, ManagerID INT NULL, ParentDepartmentNumber CHAR (10) NULL, ValidFrom DATETIME2 NOT NULL, ValidTo DATETIME2 NOT NULL ); -- Temporal table CREATE TABLE Department ( ...
DELETE FROM temp_table; 带子查询的删除:sql DELETE FROM orders WHERE customer_id IN ( SELECT id FROM customers WHERE status='inactive' ); 2.5 事务控制 基本语法 sql BEGIN TRANSACTION; -- 开始事务 INSERT INTO...; UPDATE...; COMMIT; -- 提交事务 -- 或 ROLLBACK; -- 回滚事务 ACID特性 原...
解决方法:SQL方式执行INSERT时,需要将数据写入指定的分区子表。详情请参见CREATE PARTITION TABLE。 报错:SELECT INTO is not supported now. 问题原因:Hologres不支持使用SELECT INTO语法。 解决方法:您可使用INSERT INTO SELECT方式插入数据,详情请参见INSERT。
| schema . ] table_name ( { column [ ASC | DESC ] } [ ,...n ] ) WITH ( DROP_EXISTING = { ON | OFF } ) [;] 参数 UNIQUE 为表或视图创建唯一索引。 唯一索引不允许两行具有相同的索引键值。 数据库引擎不允许对已包含重复值的列创建唯一索引,无论是否 IGNORE_DUP_KEY 设置为 ON。