Physical Backup

What is physical Backup? The operating system saves the database files onto tape or some other media. This is useful to restire the system to an earlier point whenever needed. In its simplest form, a physical backup is the movement of all data from one raw device to another; in the context of file system […]

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Logical Backup

What is a logical backup? Logical backups are backups in which the export utility (for example Exp) uses SQL to read database data and then export it into a binary file at the operating system level. You can then import the data back into a database using the import utility (Imp).The Oracle Export Utility can […]

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Index In Oracle

We are living on the planet with the seven billion population.Each and every human being’s have some information. Data is an important factor in the business’s world.  Every day in business’s operation we deal with data. It can be structure and un-structure data. All the report of business prepare with the help of data. We take a […]

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Upgrading Oracle Grid Infrastructure 11gR2 to 12cR2

Here I would be discussing how to upgrade Oracle 11gR2 (11.2.0.4) Grid Infrastructure to Oracle 12cR2 (12.2.0.1) on the same server. This upgrade process was done on Linux 6 (x86_64). 1. Before the GI upgrade backup the OCR manually. This could be used in downgrading the GI from 12.2.0.1 to 11.2.0.4 later one. If you […]

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RDBMS DST Upgrade

After upgrading to Oracle 12.2, we face the issue of RDBMS DST timezones.Then either check support id 1585343.1 or else follow the below step 1.Connect to “sqlplus” and run the “upg_tzv_check.txt” file. If you want to download the content of upg_tzv_check

2. Now check the current timezone.

3. Now run the “upg_tzv_apply.txt” file. […]

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Manual upgrading Oracle database 11gR2 to 12cR2

Manual upgrading Oracle database 11gR2 to 12cR2 If you want to know how we upgrade an 11.2.0.4 database to 12.2.0.1 using DBUA, click here. This article explains how to upgrade 11.2.0.2 and above, and 12.1.0.1 to 12.2.0.1 manually. Manually upgrading to 12c There are many DBAs who don’t want to follow the recommended way of upgrade […]

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Catalog Database Configure

Description:    RDB1 as TARGET SERVER                         RDB2 as CATALOG SERVER  create a database using DBCA on catalog server as catalog database i.e. RDB create a service in target server for the catalog server connection. check service alias using TNSPING servicename(EX:TNSPING RDB2) in terminal […]

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