it is more efficient to create another table called productdetail s.
UPDATE MYSQL BASED ON ANOTHER TABLE UPDATE
The syntax of an update statement is this: UPDATE table SET column value WHERE condition You can specify one table and one or more pairs of columns and values. Increase the price by 10 for all products mysql> UPDATE products SET price. I hope this example to select or update MySQL table rows by even or odd number field value help you. To update data in a table, we can run an UPDATE statement.
Creating a table mysql> CREATE table tblFirst -> ( -> id int, -> name varchar (100) -> ) Query OK, 0 rows affected (0.
UPDATE `users` set `status_id` = 1 where MOD(field_name, 3) = 0 We can update another table with the help of inner join. For another example, to update records which are divisible by 3. Similarly you apply different criteria to select or update records. To update all rows ID of which is odd: UPDATE `users` set `status_id` = 1 where MOD(field_name, 2) 0 To select all rows which has a field value an odd number: SELECT * FROM `users` where MOD(field_name, 2) 0 Query: CREATE DATABASE geeks Step 2: Use database Use the below SQL statement to switch the database context to geeks: Query: USE geeks Step 3: Table definition We have two tables named ‘demotable1’ and ‘demotable2’ in our geek’s database. To update all records field value of which is even: UPDATE `users` set `status_id` = 1 where MOD(field_name, 2) = 0 Step 1: Create a database we can use the following command to create a database called geeks. To select all rows whose specific field’s value is an even number: SELECT * FROM `users` where MOD(field_name, 2) = 0 įor testing with different status types I want to update my table field statud_id to either 1 or 0 based on even or odd value of field_name. Here, we are updating the value of column1 in the table1 table to the value stored in column1 of table2, but only in rows where column2 of table1 match column2. Your result might look like this:įor example you have a users table with a field name field_name. In this simple tutorial I will show to select or update rows in your mysql table based on a stored even or add number in a specific field of your table.
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