I'm looking for a way of inserting a range of values into multiple rows. I have two columns that I am inserting into - project (stays the same) and sceneno, which is where the values will increment from x-y. Basically I am trying to convert the very inefficient PHP code below into...
//auto_increment表示自增,从1开始,以1递增! name varchar(255) ); insert into t_vip(name) values('zhangsan'); insert into t_vip(name) values('zhangsan'); insert into t_vip(name) values('zhangsan'); insert into t_vip(name) values('zhangsan'); insert into t_vip(name) values('zhangs...
Inserting Multiple Rows (3:18) 小结 VALUES ……里一行内数据用括号内逗号隔开,而多行数据用括号间逗号隔开 案例 插入多条运货商信息 USE sql_store INSERT INTO shippers (name) VALUES ('shipper1'), ('shipper2'), ('shipper3'); 1. 2. 3. 4. 5. 6. 练习 插入多条产品信息 USE sql_store; ...
mysql> insert into t1 values('你瞅啥 ','你瞅啥 '); Query OK, 1 row affected (0.05 sec) mysql> SET sql_mode=''; Query OK, 0 rows affected, 1 warning (0.00 sec) #在检索时char很不要脸地将自己浪费的2个字符给删掉了,装的好像自己没浪费过空间一样,而varchar很老实,存了多少,就显示多...
with values of 4 and 7. Separate transactions that attempt to insert values of 5 and 6, respectively, each lock the gap between 4 and 7 with insert intention locks prior to obtaining the exclusive lock on the inserted row, but do not block each other because the rows are nonconflicting....
记录了0+0的写出0字节(0B)已复制,0.000219914秒,0.0kB/秒[root@localhosttmp]# ll -h 20m.img-rw-r--r-- 1 root root 20M 6月 6 15:15 20m.imgmysql>createtablet1(idintauto_incrementprimarykey,alongblob);Query OK,0rowsaffected(0.03sec)mysql>insertintot1values(NULL,load_file('/tmp/20m.img...
INSERT INTO table(column1,column2...) VALUES (value1,value2,...), (value1,value2,...), ...; In this form, the value list of each row is separated by a comma. For example, to insert multiple rows into the tasks table, you use the following statement: 1 2 3 4 INSERT INTO...
主键或者唯一键没有冲突,则直接插入,如果冲突,则 删除后再插入(replace into) 代码语言:javascript 代码运行次数:0 运行 AI代码解释 mysql> insert into students values (22, 31,'Mike', '9856'); Query OK, 1 rows affected (0.00 sec) mysql> select * from students; +---+---+---+---+ | id...
Consider following example: mysql> CREATE TABLE u (id INT NULL, UNIQUE KEY(id)); Query OK, 0 rows affected (0.03 sec) mysql> INSERT INTO u VALUES (NULL), (NULL), (NULL); Query OK, 3 rows affected (0.00 sec) Records: 3 Duplicates: 0 Warnings: 0 # Note there is no error nor ...
if (($stmt->affected_rows > 0) && isset($_POST['size'])) { // get the product's primary key $product_id = $stmt->insert_id; foreach ($_POST['size'] as $size_id) { if (is_numeric($size_id)) { $values[] = "($product_id, " . (int) $size_id . ')'; ...