If exists then update else insert. Ask Question Asked years, months ago. This PDO statement will update the record if a combination of user_id and product_code exists by adding supplied quantity to existing quantity and updating added_on field.
Otherwise will add a new row with given values. This is the way to insert row if not exists else update the record in MySQL table. MySQL 当记录不存在时插入(insert if not exists) 在 MySQL 中,插入(insert)一条记录很简单,但是一些特殊应用,在插入记录前,需要检查这条记录是否已经存在,只有当记录不存在时才执行插入操作,本文介绍的就是这个问题的解决方案。. Often you have the situation that you need to check if an table entry exists, before you can make an update.
Insert into a MySQL table or update if. UPDATE wp_postmeta SET meta_value = ? There are three ways to insert record in Codeigniter if it doesn’t exist else update the record if it exists. Here we’re using the Active Record as well as Query Binding features in Codeigniter to insert or update a record.
There is also similar article for the native PHP and MYSQL way. This may not be an issue if nothing else is altering either table at the same time. Another disadvantage is that I just deleted some data I might want in subsequent queries.
I will select name from table where name is the same name I want to insert. On some occasions we need to update an entry in a table in case there is an entry otherwise we need to insert that data into the table.