--用户首次添加INSERTIGNOREINTOusers_info(id,username,sex,age,balance,create_time)VALUES(null,'chenhaha','男',26,0,'2020-06-11 20:00:20');--二次添加,直接忽略INSERTIGNOREINTOusers_info(id,username,sex,age,balance,create_time)VALUES(null,'chenhaha','男',26,0,'2020-06-11 21:00:20')...
首先,最大的区别是二者属于不同类型的语句,INSERT INTO SELECT 是DML语句(数据操作语言,SQL中处理数据等操作统称为数据操纵语言),完成后需要提交才能生效,CREATE TABLE AS SELECT 是DDL语句(数据定义语言,用于定义和管理 SQL数据库中的所有对象的语言 ),执行完直接生效,不提供回滚,效率比较高。 其次,功能不同,INSER...
需要说明的是,INSERT INTO和INSERT IGNORE INTO只根据“主键值”或“unique索引”进行判断,只要主键值已在数据库中存在,则认为即将插入重复记录。 一次插入一行数据: INSERT IGNORE INTO table_name (field1,field2) values 1. 一次插入多行数据: INSERT IGNORE INTO `iphone` VALUES (1,'iphone4','USA',1),...
INSERT INTO TABLEPosted by: Adwait Joshi Date: July 18, 2005 11:14AM I have a table named A which has all the columns of table B plus some other columns, I want to insert data in to A from B however during this update I also want to set the values for the columns in A that...
一、INSERT INTO 语句:要求是不能违反主键或唯一索引,否则报错 一次插入一条数据: INSERTINTOtable_name (field1,field2)values(value1,value2); 一次插入多条数据: INSERTINTO`iphone`VALUES (1,'iphone4','USA',1), (2,'iphone5','USA',1), ...
table_references {[INNER|CROSS] JOIN | {LEFT|RIGHT} [OUTER] JOIN} mysql> UPDATE tdb_goodsINNER JOIN(内连接)tdb_goods_catesON goods_cate=cate_name(连接条件)SET goods_cate=cate_id; Query OK, 22 rows affected (0.06 sec) Rows matched: 22 Changed: 22 Warnings: 0 ...
提到MySQL的Insert语句,你肯定不陌生,或许已经张口就来:不就是insert into table values(xxx,xxx,xxx)嘛!没错,但在实战中,根据不同的需求场景,插入操作在语法、执行方式上的用法多种多样。今天,我来给小伙伴们从这两方面分享一下搬砖心得,如果你有疑问或好的想法,记得在评论区给我留言,我会在搬砖之余和大家一...
mysql> INSERT INTO tb_courses -> (course_id,course_name,course_grade,course_info) -> VALUES(1,'Network',3,'Computer Network'); Query OK, 1 rows affected (0.08 sec) mysql> SELECT * FROM tb_courses; +---+---+---+---+ | course_id | course_name | course_grade | course_info ...
INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...); 2. If you are adding values for all the columns of the table, you do not need to specify the column names in the SQL query. However, make sure the order of the values is in the...
I am trying to insert 18 records a table for my database. and I keep getting this error [Err] 1064 - 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 ' ("pochibexit alb", 144, 440845, 593248, ...