Monthly Archives: August 2025

Using TKPROF to Enable SQL Trace and Analyze Query Performance for Identifying Slowness in the Database

Introduction In Oracle databases, performance issues often stem from inefficient SQL queries. TKPROF is a powerful utility that formats the output of SQL trace files, making it easier to interpret…

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Enabling Query Store on SQL Server 2019

Introduction:  When it comes to database performance tuning, that’s where Query Store appears. Introduced in 2017 version and significantly enhanced in 2019, Query Store acts like a “flight recorder” for…

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Archiving and Deleting Data From MS SQL Server Database 

Archiving and Deleting Data From SQL Server Database  Server: SERVER1  Main Database: DB1  Archive Database: DB1_archive  Target Table: dbo.PerformanceCounters  Objective:  To archive and delete data older than 90 days from…

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Troubleshooting Query Plan Optimization Using Query Store

Introduction SQL Server Query Store is enabled to assist in monitoring query performance and identifying query plan regressions. Query Store captures a history of query plans, making it an excellent…

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When tempdb Won’t Shrink

Introduction In SQL Server, the tempdb system database can grow significantly due to heavy workloads, temporary objects, or large queries. Sometimes, even after reducing workload or removing temporary data, tempdb…

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Resolving Error ORA-00955: name is already used by an existing object

Introduction While working with Oracle databases, you may encounter the error ORA-00955: name is already used by an existing object when trying to create objects like tables, indexes, or materialized…

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Resolving ORA-39405: Upgrading Target Database Time Zone File to Match Source in Oracle Data Pump Imports

Introduction When performing an Oracle Data Pump import, mismatched database Time Zone File (TSTZ) versions between the source and target databases can cause an ORA-39405 error. This issue occurs because Oracle…

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 Issue faced after cloning pluggable database

Verify the pbs’s in the database. Create the pluggable database using the below command. In the above screenshot, new pluggable database opened with errors and in restriction mode. While verifying…

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How to change the Database SYS password in OCI console

Step 1: Login to database where you want to change the sys password. In the example we choose Oracle Base Database Service.   Step 2 : In the Database Page :…

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Merging JasperReports into a Single Document (PDF or More)

Introduction: – This document explains how to merge multiple JasperReports into a single PDF or another output format using Java. The following technologies have been used to merge multiple JasperReports into…

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