PL/SQL

PL/SQL (Procedural Language/Structured Query Language) is Oracle’s procedural extension for SQL. PL/SQL includes features such as conditional statements, loop processing and exception handling.

Static SQL vs Dynamic SQL

Static SQL vs Dynamic SQL: Which to use?

Static SQL vs dynamic SQL: a comparison on metrics such as security, maintainability and performance, and a rule of thumb for choosing between the two.

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What are SQLCODE and SQLERRM?

SQLCODE and SQLERRM are Oracle’s built-in error reporting functions in PL/SQL. See PL/SQL examples using SQLCODE and SQLERRM in various scenarios.

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Fuzzy Matching with UTL_MATCH

Fuzzy Matching with UTL_MATCH

Oracle supports fuzzy matching with UTL_MATCH functions based on Levenshtein Distance and Jaro-Winkler Distance. A look at UTL_MATCH functions in action.

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Oracle Partitioning: Range Interval Partitioning

Create Oracle table partitions on-the-fly using range interval partitioning, a beautiful Oracle partitioning feature that obviates the need to pre-create database table partitions.

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How to Find out Your Oracle Database Version

Three ways to find out your Oracle database version in SQL and PL/SQL: using V$VERSION, V$INSTANCE, or DBMS_DB_VERSION constants.

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Access Control List (ACL) in Oracle 11G

Access Control List or ACL is a security mechanism that defines which users or roles can perform which operations on which data. It is an essential setup in Oracle 11G for running network packages such as UTL_HTTP.

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UTL_HTTP to Call a Web Service from PL/SQL

UTL_HTTP to Call a Web Service from PL/SQL

You can call a web service from PL/SQL using the Oracle-supplied package UTL_HTTP. This article demos a PL/SQL script to invoke a web service and read its response into a CLOB. It also describes typical errors you may encounter in web service calls and how to resolve them.

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UTL_FILE: Write to file example in PL/SQL

UTL_FILE: Write To File Example and Debugging Common Errors

Example of using UTL_FILE in PL/SQL to write to a file. Plus, ORA errors and solutions to common problems faced with UTL_FILE.

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Oracle Collections and Object Types: Comparing for Equality

Oracle collection or object type comparison – how to check if two Oracle collections or object types are equal or not.

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The Smart Way to Check if an Element Exists in a Collection

Oracle 10G onwards, the set operator MEMBER OF can be applied to test if an element exists in a collection or not. You do not need to loop through all elements in the collection to find a match.

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