name) ); insert into t_vip(id,name,email) values(1,'zhangsan','zhangsan@123.com'); insert into t_vip(id,name,email) values(1,'lisi','lisi@123.com'); //错误:不能重复 insert into t_vip(id,name,email) values(1,'lisi','lisi@123.com'); ERROR 1062 (23000): Duplicate entry ...
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...
insert into t_demo(name,score) values('a',10); insert into t_demo(name,score) values('b',20); insert into t_demo(name,score) values('c',30); insert into t_demo(name,score) values('d',40); insert into t_demo(name,score) values('d',50); insert into t_demo(name,score) v...
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$sql .= "INSERT INTO MyGuests (firstname, lastname, email) VALUES ('Julie', 'Dooley', 'julie@example.com')"; if (mysqli_multi_query($conn, $sql)) { echo "New records created successfully";} else { echo "Error: " . $sql . "" . mysqli_error($conn);}mysqli_close($conn);...
insert_id - returns the value generated for an AUTO_INCREMENT column by the prepared statement num_rows - returns the number of rows in the result set param_count - returns number of parameter for a given prepare statement sqlstate - returns a string containing the SQLSTATE error code for ...
(i.e. exposing all of the IDs, whether as a memory table or otherwise) as a replacement for the last_insert_id() function, unless functions will be extended to return multiple rows anytime soon. An ordered set of ALL the IDs of the last insertion is obviously much more generally ...
INSERT INTO student (id, name, age) VALUES (2, ‘Bob’, 21), (3, ‘Charlie’, 22); This command inserts two rows of data into the student table at once. The syntax is simple and efficient. Additionally, when retrieving multirow data, you can use theSELECTstatement to query one or...
Theinitialsizeofthe bufferforclient/server communication.Whencreating multiple-rowINSERTstatements (aswiththe--extended-insert or --opt option), mysqldump creates rows up to net_buffer_length bytes long. If you increase this variable, ensure that the MySQL server net_buffer_length system variable ...
as you can see i use FOR EACH and each time i executes i make new sqlQuery and execute it on server. But such solution is used only because i didn't find how to add multiple data lines at once. It greatly slows down everything. I need to insert or update about 15 000 items in...