Final PL/SQL Question Bank
Explain joins in SQL with example
Explain Aggregate Function with example
Explain DDL, DML command with example
Discuss how to create, store, execute, and drop a PL/SQL function. Explain the differences between IN, OUT, and IN OUT parameters with examples.
Explain what a procedure is. Discuss its structure, parameters, and how procedures differ from functions with examples.
Explain explicit cursors in PL/SQL. Discuss the cursor lifecycle (Declare, Open, Fetch, Close) with examples.
Describe implicit and explicit cursors. Compare them and explain cursor attributes (%FOUND, %NOTFOUND, %ROWCOUNT, %ISOPEN) with examples.
What is a trigger? Explain different types of triggers – BEFORE, AFTER, INSTEAD OF triggers – with examples.
Write detailed notes on Dropping a Table. Explain the difference between DROP, TRUNCATE, and DELETE.
Explain INSERT, UPDATE, and DELETE queries in SQL with syntax and examples
. Discuss the difference between updating a single row vs. multiple rows using the WHERE clause.
Describe the SELECT statement in SQL. Explain its components (SELECT, FROM, WHERE, ORDER BY, GROUP BY, HAVING) with suitable examples. Discuss how data retrieval works in SQL.
Explain the use of comparison operators (=, <>, >, <, >=, <=) and pattern matching operators (LIKE, NOT LIKE) in SQL. Provide a minimum of five example queries.
