sql delete all rows in table code example

Example 1: delete all records from table

DELETE FROM table_name;

Example 2: SQL Query to delete all the tables in a database

BY LOVE

EXEC sp_msforeachtable "ALTER TABLE ? NOCHECK CONSTRAINT all"
DECLARE @sql NVARCHAR(max)=''

SELECT @sql += ' Drop table ' + QUOTENAME(TABLE_SCHEMA) + '.'+ QUOTENAME(TABLE_NAME) + '; '
FROM   INFORMATION_SCHEMA.TABLES
WHERE  TABLE_TYPE = 'BASE TABLE'
Exec Sp_executesql @sql

Example 3: delete all records from table except sql

delete from yourTableName where yourColumnName NOT
IN(‘yourValue1’,‘yourValue2’,‘yourValue3’,.........N);

Example 4: delete all records from table except sql

DELETE FROM my_table WHERE col1 > 2;
DELETE FROM my_table WHERE col1 IS NOT NULL;