How do I insert a value into a table in MariaDB?
To add data to a table in MariaDB, you will need to use the INSERT statement. Its basic, minimal syntax is the command INSERT followed by the table name and then the keyword VALUES with a comma separated list of values contained in parentheses: INSERT table1 VALUES(‘text1′,’text2′,’text3’);
How do I insert a null value in MariaDB?
MariaDB handles NULL values in a special way if the field is an AUTO_INCREMENT, a TIMESTAMP or a virtual column. Inserting a NULL value into a numeric AUTO_INCREMENT column will result in the next number in the auto increment sequence being inserted instead.
What does the trigger look like in MariaDB?
Here’s what the trigger will look like: AFTER INSERT specifies that the trigger will run after an INSERT. The trigger could also be set to run before, and the statement causing the trigger could be a DELETE or an UPDATE as well. Now, if we insert a record into the animals table, the trigger will run, incrementing the animal_count table;
How to create a new trigger in MySQL?
This statement creates a new trigger. A trigger is a named database object that is associated with a table, and that activates when a particular event occurs for the table. The trigger becomes associated with the table named tbl_name, which must refer to a permanent table.
How does follows and precedes work in MariaDB?
FOLLOWS adds the new trigger after another trigger while PRECEDES adds the new trigger before another trigger. If neither option is used, the new trigger is added last for the given action and time. FOLLOWS and PRECEDES are not stored in the trigger definition.
How does the CREATE TABLE statement in MariaDB work?
Executing the CREATE TABLE statement requires the CREATE privilege for the table or the database. If the OR REPLACE clause is used and the table already exists, then instead of returning an error, the server will drop the existing table and replace it with the newly defined table.