Plsql

Write Text Files from Oracle PL/SQL with UTL_FILE Example Purpose UTL_FILE is the built-in Oracle PL/SQL package for reading and writing operating-system files from inside the database. The procedure below — taken straight from the shutdownabort.com DBA Quick Guides (Andrew Barry, 2007–2013, preserved via the Wayback …

Oracle CREATE DIRECTORY Command Explained The Oracle CREATE DIRECTORY command creates a directory object — a logical alias inside the Oracle database that points to a real folder on the server's file system. This is one of the most used setup steps for Oracle Data Pump exports and imports, UTL_FILE file operations, …

Oracle DBMS_FLASHBACK Enable At Time: Session Flashback Guide Oracle's DBMS_FLASHBACK.ENABLE_AT_TIME is a powerful procedure that lets you travel back in time within your database session — letting you query data exactly as it existed at a specific past moment, without needing a full database restore. What This Code …

Overview When working with Oracle Database, there are times when you need to look at data from the past — like rewinding a video to see what happened earlier. Oracle gives you a tool called Flashback to do this. But once you are done looking at past data, you must turn Flashback off. The command to do that is: 1EXEC …

Enable or Disable Oracle GATHER_STATS_JOB for Automatic Statistics Collection The GATHER_STATS_JOB is a critical Oracle Database scheduled job that automatically collects optimizer statistics to ensure the database query optimizer generates efficient execution plans. This job is enabled by default when creating a new …

How to Remove an Oracle AWR Baseline Using DROP_BASELINE Purpose The DROP_BASELINE procedure removes a previously-defined AWR (Automatic Workload Repository) baseline from an Oracle database. This command is essential for database administrators who need to conserve storage space by deleting unused or outdated …

Oracle AWR Create Baseline for Performance Monitoring DBMS_WORKLOAD_REPOSITORY.CREATE_BASELINE What is Oracle AWR Create Baseline The DBMS_WORKLOAD_REPOSITORY.CREATE_BASELINE procedure creates a baseline by preserving a specific range of AWR snapshots for future performance comparisons. A baseline protects performance …

How to Manually Take an AWR Snapshot in Oracle Database with dbms_workload_repository.create_snapshot What is Oracle AWR Snapshot Creation? Creating a manual AWR snapshot in Oracle Database allows database administrators to capture performance statistics at specific points in time, providing precise data for …

How to Change Oracle AWR Retention Period to 14 Days using dbms_workload_repository.modify_snapshot_settings Purpose The Oracle code changes the Automatic Workload Repository (AWR) retention period from the default 8 days to 14 days (two weeks). This allows database administrators to store performance snapshots for a …

Struggling with compilation errors and warnings in Oracle Database? For those working with Oracle Database, ensuring code compiles smoothly is paramount. Compilation errors can derail stored procedures, functions, packages, and triggers, leading to unexpected behavior. This guide equips you with the knowledge to …