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PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. Here are some essential commands and concepts to get you started.
Blocks
A PL/SQL block consists of three sections: Declaration, Execution, and Exception handling.
SET SERVEROUTPUT ON;DECLAREv_number NUMBER := 5;BEGINDBMS_OUTPUT.PUT_LINE('Value: ' || v_number);EXCEPTIONWHEN OTHERS THENDBMS_OUTPUT.PUT_LINE('An error occurred.');END;Copied!✕CopyVariables
Variables in PL/SQL can be declared in the declaration section of a block.
DECLAREv_number NUMBER := 10;v_name VARCHAR2(20) := 'John';BEGINDBMS_OUTPUT.PUT_LINE('Name: ' || v_name || ', Number: ' || v_number);END;Copied!✕CopyLoops
PL/SQL supports various types of loops including simple loops, while loops, and for loops.
Simple Loop
DECLAREv_counter NUMBER := 0;BEGINLOOPv_counter := v_counter + 1;EXIT WHEN v_counter = 5;DBMS_OUTPUT.PUT_LINE('Counter: ' || v_counter);END LOOP;END;Copied!✕CopyWhile Loop
INNER JOIN: show all matching records in both tables. LEFT JOIN: show all records from left table, and any matching records from right table. RIGHT JOIN: show all records from right table, …
1 IN An IN parameter lets you pass a value to the subprogram. It is a read-only parameter. Inside the subprogram, an IN parameter acts like a constant. It cannot be assigned a value. You. …
PL/SQL Cheatsheet | Cheat Sheets Hero
Mar 3, 2025 · A concise reference for PL/SQL, covering syntax, data types, control structures, and common operations for Oracle database programming.
Oracle Database/SQL Cheatsheet - Wikibooks
- INDEXES
An index is a method that retrieves records with greater efficiency. An index creates an entry for each value that appears in the indexed columns. By default, Oracle creates B-treeindexes.
- INDEXES
Oracle PL/SQL Cheat Sheet - PeopleSoft Tutorial
Download a PDF file with PL/SQL syntax, functions, operators, and examples. Learn PL/SQL from a recommended book and a cheat sheet collection.
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PLSQL queries cheatsheet | cheat-sheets
Several cheat-sheets of different topics in .md format. Checkout the Github pages version.
Oracle PL SQL Quick Reference Sheet | Cheat Sheet …
Download Cheat Sheet - Oracle PL SQL Quick Reference Sheet | Felician University | SQL cheat sheet covering around 50 terms and commands
PLSQL CheatSheet | PDF - Scribd
The document provides a cheat sheet for PL/SQL control statements, including conditional statements (IF, CASE), iterative statements (LOOP, WHILE, FOR), and sequential statements …
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PL/SQL Cheatsheet
PL/SQL Cheatsheet A concise reference for PL/SQL, covering syntax, data types, control structures, and common operations for Oracle database programming.