How to insert values in table in MySQL?
VALUES (VALUE_1,VALUE_2,..) In syntax, First, you must specify the name of the table. After that, in parenthesis, you must specify the column name of the table, and columns must be separated by a comma. The values that you want to insert must be inside the parenthesis, and it must be followed by the VALUES clause.
What does it mean to insert a row in MySQL?
The following statement inserts a new row into the tasks table: It means that one row has been inserted into the tasks table successfully. In this example, we specified the values for only title and priority columns. For other columns, MySQL uses the default values.
How to insert default value into column in MySQL?
If you want to insert a default value into a column, you have two ways: First, ignore both column name and its value in the INSERT statement. Second, specify the column name in the INSERT INTO clause and use the DEFAULT keyword in the VALUES clause.
How to add a column at a specific position in a table?
To add a column at a specific position within a table row, use FIRST or AFTERcol_name. The default is to add the column last. You can also use FIRST and AFTER in CHANGE or MODIFY operations to reorder columns within a table. I googled for this for PostgreSQL but it seems to be impossible.
How to add custom check constraint in MySQL?
How do I add a custom CHECK constraint on a MySQL table? I want to have a foreign key constraint, and that works. Then, I also want to add a constraint to the attribute status so it can only take the values ‘a’, ‘d’ and ‘u’. It is not possible for me to set the field as Enum or set. Can anyone tell me why this code does not work in MySQL?
Which is the auto increment column in MySQL?
The task_id column is an AUTO_INCREMENT column. It means that MySQL generates a sequential integer whenever a row is inserted into the table. The start_date, due_date, and description columns use NULL as the default value, therefore, MySQL uses NULL to insert into these columns if you don’t specify their values in the INSERT statement.