Sql Query to Check Different Client Character Set, Client Version and Client Driver or Software Connected to The Database

In this post provides you queries to find out the different client connection details like character set, the client software or driver etc. with their count. 

Query to Get Hostname Instance Name and Startup Time for Oracle RAC Database

As a DBA if you are supporting multiple database environments, it is difficult to maintain the list of instance and database details. Using this query, you will be able to easily to fetch the details from the database. This query also give you the startup time for each instance. 

How to Check Active Transaction in Oracle Database – v_$transaction

V_$transaction table will give you the active transaction in the database. This dynamic view get recorded with the active transaction which is being executed or waiting for the resources in the database or operating system.

SQL Query to Find Out Session wise PGA Usage

SQL Query
 
set lines 2000 Pages 200
col program for a40
col module for a40

SQL Query to Find Out Sessions Using More Temp Space

Query

set pages 1000 lines 222
col USERNAME for a15
col osuser for a8
col tablespace for a8
col MODULE for a10
SELECT  so_us.TABLESPACE   

Easy way to Connect and Query OCI Autonomous Database - SQL Developer Web

Oracle provides easy way to connect the OCI autonomous database. This is free SQL developer like tool which is in build in the OCI console itself. Here I am going to explain how to access and use it. 

How to Create or Provision OCI Autonomous Database

Step 1. 
Click on navigation menu and Click on Autonomous Data Warehousing or Autonomous Transaction Processing 

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