SQL

how to drop function in sql

DROP FUNCTION IF EXISTS sales.udf_get_discount_amount;

drop function in sql

/*-----------Delete Funcition---------*/
DROP FUNCTION sales.udf_get_discount_amount;

delete rows from table sql

TRUNCATE table my_table;

sql delete where in

-- Deletes all records where `columnName` matches the values in brackets.
DELETE FROM tableName WHERE columnName IN ('val1', 'val2', 'val3');

delete from table sql

DELETE FROM `table` WHERE condition

delete and drop in sql

DELETE -
-DML COMMAND
-Delete Rows from the table one by one
-We can use where clause with Delete to delete single row
-Delete is slower than truncate
-ROLLBACK is possible with DELETE

DROP-
-DDL COMMAND
-Delete the entire structure or schema
-We can't use where clause with drop
-Drop is slower than DELETE & TRUNCATE
-ROLLBACK IS NOT POSSIBLE WITH DROP

TRUNCATE-
-DDL COMMAND
-Truncate deletes rows at a one goal
-We can't use where clause with Truncate
-Truncate faster than both DELETE & DROP
-Rollback is not possible with Truncate

delete in sql

select * from 

delete in sql

create trigger