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delete.txt
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delete.txt
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================================================================================
Delete whole table
================================================================================
DELETE FROM my_table;
--------------------------------------------------------------------------------
(program
(statement
(delete
(keyword_delete))
(from
(keyword_from)
(object_reference
name: (identifier)))))
================================================================================
Delete whole table and only the whole table
================================================================================
DELETE FROM ONLY my_table;
--------------------------------------------------------------------------------
(program
(statement
(delete
(keyword_delete))
(from
(keyword_from)
(keyword_only)
(object_reference
name: (identifier)))))
================================================================================
Delete table with limit
================================================================================
DELETE FROM my_table
LIMIT 4;
--------------------------------------------------------------------------------
(program
(statement
(delete
(keyword_delete))
(from
(keyword_from)
(object_reference
name: (identifier))
(limit
(keyword_limit)
(literal)))))
================================================================================
Delete table with order by
================================================================================
DELETE FROM my_table
ORDER BY id DESC
LIMIT 4;
--------------------------------------------------------------------------------
(program
(statement
(delete
(keyword_delete))
(from
(keyword_from)
(object_reference
name: (identifier))
(order_by
(keyword_order)
(keyword_by)
(order_target
(field
name: (identifier))
(direction
(keyword_desc))))
(limit
(keyword_limit)
(literal)))))
================================================================================
Delete table with where
================================================================================
DELETE FROM my_table
WHERE id = 9;
--------------------------------------------------------------------------------
(program
(statement
(delete
(keyword_delete))
(from
(keyword_from)
(object_reference
name: (identifier))
(where
(keyword_where)
predicate: (binary_expression
left: (field
name: (identifier))
right: (literal))))))
================================================================================
Truncate table
================================================================================
TRUNCATE TABLE employees CASCADE;
--------------------------------------------------------------------------------
(program
(statement
(keyword_truncate)
(keyword_table)
(object_reference
(identifier))
(keyword_cascade)))