Deleting Data from MySQL Tables
DELETE with WHEREDELETE FROM employees WHERE id = 2;Delete All RowsDELETE FROM employees;Use with caution — consider usi...
Search guides, SQL, error codes, and procedures — or browse by topic below.
388 guides · 8 topics
API to Update FND_LOOKUP DECLARE l_lookup_type VARCHAR2 (250); l_lookup_code VARCHAR2 (250);...
Oracle SQL Performance & TuningOracle provides features and tools to analyze and tune query performance.Execution PlansI...
Basic SELECTSELECT name, salary FROM employees;All ColumnsSELECT * FROM employees;
SELECT DISTINCT A.APPLICATION_ID , A.application_short_name , b.application_name , c.RESPO...
DECLARE l_responsibility_id NUMBER; l_application_id NUMBER; l_user_id NUMBER; l_request_id...
Lists the Data Access Sets (GL access sets) the current user has access to — used as the LOV source for a "Data Ac...
Updated Aug 28, 2026
security-parametersLists the Business Units the current BI Publisher user has data access to, based on their user role data assignments &md...
Updated Aug 18, 2026
security-parametersLists the Business Units the current user has procurement agent access to, via their PO agent assignment — used as...
Updated Aug 22, 2026
security-parametersLists the Ledgers the current user has direct data access to — used as the LOV source for a "Ledger" report parame...
Updated Aug 22, 2026
security-parametersLists the Fixed Asset Books the current user has data access to — used as the LOV source for a Fixed Assets report...
Updated Aug 22, 2026
security-parametersLists the Intercompany Organizations the current user has data access to — used as the LOV source for an intercomp...
Updated Aug 22, 2026
Guides filed under this topic.
DELETE with WHEREDELETE FROM employees WHERE id = 2;Delete All RowsDELETE FROM employees;Use with caution — consider usi...
What is DML?DML stands for Data Manipulation Language. It allows users to manage data within schema objects. It includes...
INSERT StatementUsed to add new rows to a table.INSERT INTO employees (employee_id, first_name, salary) VALUES (101, 'Jo...
UPDATE StatementUsed to change existing data in one or more rows.UPDATE employees SET salary = salary + 1000 WHERE depar...
DELETE StatementRemoves one or more rows from a table.DELETE FROM employees WHERE department_id = 30;If you omit the WHE...
MERGE StatementAlso known as an 'upsert' operation — it updates if a match is found or inserts if not.MERGE INTO employe...
TRUNCATE StatementRemoves all rows from a table but unlike DELETE, it is not transactional and cannot be rolled back.TRU...