Generating DDL script for a schema by using impdp
SQLFILE parameter in impdp can be used to generate the DDLs from a dumpfile. If you need the DDL of...
October 9, 2025
Ahmet Duruöz
2025
How to reset Mysql root password ?
The MySQL root password provides the root user with full access to the MySQL database. If the root password is...
June 24, 2025
Oracle Database Feature Usage Statistics
Oracle Database includes a powerful internal mechanism called Feature Usage Statistics (FUS), which helps DBAs and system administrators track which...
April 14, 2025
SQL Tuning Health-Check Script (SQLHC)
SQL Tuning Health-Check Script (SQLHC) is used to check the environment in which a single SQL statement is running, Cost-based...
March 19, 2025
Bash Script for PostgreSQL Health Check
To ensure the health and performance of your PostgreSQL database, you can set up a daily health check script. The...
February 21, 2025
2024
Session waits on all datababase
You can display information on all database session waits by below query. SET LINESIZE 200 SET PAGESIZE 1000 COLUMN...
December 13, 2024
Execution plan fixing in Oracle databases
In some cases in Oracle databases, queries may run with bad plans due to optimizers not being able to make...
November 19, 2024
Exadata – Disk scrubbing feature
Disk scrubbing is available on Exadata cell nodes to automatically repair bad sectors on the disk when the system is...
November 19, 2024
In which cases , indexes should be rebuild ?
In Oracle databases, indexes become fragmented over time and cause serious performance problems. Indexes must be checked regularly and, if...
November 19, 2024
PostgreSQL Security Vulnerabilities
You can find more detailed information about a security vulnerability by clicking on the links in the table below. Known...
November 16, 2024
How to query cluster name?
After installing Oracle clusterware, we have often asked ourselves what we named the cluster. Unless we took screenshots, of course....
November 8, 2024
ORA-64307: Exadata Hybrid Columnar Compression is not supported for tablespaces on this storage type
When you try to import an export from a database on Exadata to a database that is not on Exadata...
November 8, 2024
How to resize ACFS file system online ?
We can resize the ACFS file system online without having to umount or disable volume. For this, we use the acfsutil tool....
November 8, 2024
How to convert Administrator-Managed databases to Policy-Managed databases ?
The cluster database configuration can be Policy-Managed or Administrator-Managed. A Policy-Managed database has instances managed on a per-server pool basis...
November 8, 2024
Oracle Flashback Query
Oracle Flashback Query allows the use of select query with AS OF. It allows us to query as much of...
November 8, 2024
