How can I check Oracle database status?

Use the below command to check the status and other names of the oracle databases 19c and 21c. SELECT INSTANCE_NAME, STATUS, DATABASE_STATUS FROM V$INSTANCE; In the below output, you can see that database status is active which means the database is ready to use.

What is DB AWR report?

Automatic Workload Repository report or AWR report collects, processes, and maintains performance statistics for problem detection and self-tuning purposes. This gathered data is stored both in memory and in the database and is displayed in both reports and views.

How do I get an AWR report?

To generate an AWR Compare Periods report on the local database instance using the command-line interface:

1. At the SQL prompt, enter: @$ORACLE_HOME/rdbms/admin/awrddrpt.sql.
2. Specify whether you want an HTML or a text report: Enter value for report_type: html.

How do you check if your database is RAC or not?

There are several ways to check the status of the RAC. The srvctl utility shows the current configuration and status of the RAC database. The V$ACTIVE_INSTANCES view can also display the current status of the instances.

What is Oracle ASH report?

ASH reports enable you to perform analysis of: Transient performance problems that typically last for a few minutes. Scoped or targeted performance analysis by various dimensions or their combinations, such as time, session, module, action, or SQL identifier.

What is alert log in Oracle?

Alert logs contain important information about error messages and exceptions that occur during database operations. Each Oracle Database for Windows instance has one alert log; information is appended to the file each time you start the instance. All threads can write to the alert log.

How do you check if SQL DB is up and running?

To check the status of the SQL Server Agent:

1. Log on to the Database Server computer with an Administrator account.
2. Start Microsoft SQL Server Management Studio.
3. In the left pane, verify the SQL Server Agent is running.
4. If the SQL Server Agent is not running, right-click SQL Server Agent, and then click Start.
5. Click Yes.

What is AWR and ADDM?

The Automatic Database Diagnostic Monitor (ADDM) is a self-diagnostic engine built into Oracle Database. ADDM examines and analyzes data captured in the Automatic Workload Repository (AWR) to determine possible performance problems in Oracle Database.

What is AWR and ASH report?

AWR – It holds historic past snapshot intervals and the session performance statistics for analysis later. ASH report provides the following information: Top Events. Load Profile. Top SQL.

What is AWR and ADDM reports?

ADDM examines and analyzes data captured in the Automatic Workload Repository (AWR) to determine possible performance problems in Oracle Database. ADDM then locates the root causes of the performance problems, provides recommendations for correcting them, and quantifies the expected benefits.

What is an Oracle alert log?