Iroducio

Oracle is a widely used relaioal daabase maageme sysem. I he eve of daa loss, i is criical o have a backup ad recovery pla i place. I his aricle, we will discuss how o recover able daa i Oracle usig SQL.。

Sep 1: Ideify he Table

The firs sep i recoverig able daa is o ideify he able ha eeds o be resored. This ca be doe by queryig he daa dicioary views i Oracle. For example, he followig SQL saeme ca be used o lis all ables i a specific schema:。

```。

SELECT able_ame。

FROM all_ables。

WHERE ower = 'schema_ame';。

```。

Sep 2: Resore he Table

Oce he able has bee ideified, he ex sep is o resore he able from a backup. This ca be doe usig he followig SQL commad:。

```。

ISERT ITO able_ame。

SELECT 。

FROM able_ame_backup。

WHERE backup_dae = 'yyyy-mm-dd';。

```。

I his commad, replace "able_ame" wih he ame of he able o be resored ad "able_ame_backup" wih he ame of he backup able. The "backup_dae" parameer specifies he dae of he backup o be resored.。

Sep 3: Verify he Daa

Afer resorig he able, i is impora o verify ha he daa has bee successfully resored. This ca be doe by execuig a SELECT saeme o he resored able:。

```。

SELECT 。

FROM able_ame;。

```。

If he daa appears o be correc, he recovery process is complee.。

Coclusio

I coclusio, recoverig able daa i Oracle usig SQL is a sraighforward process ha ca be accomplished wih jus a few commads. By havig a backup ad recovery pla i place, you ca esure ha you are prepared for ay daa loss sceario.。

Tags

Oracle, SQL, Daa Recovery, Backup ad Recovery, Daa Loss。