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How to retrieve deleted table data in oracle

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Release: 2024-04-18 18:24:13
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How to recover deleted table data in Oracle

Question: How to recover deleted Oracle table data?

Answer:

To recover deleted Oracle table data, you can use the following steps:

1. Check the Recycle Bin

There is a special storage area in Oracle called the "Recycle Bin" that contains recently deleted data. To check the Recycle Bin, use the following query:

<code>SELECT * FROM RECYCLEBIN;</code>
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2. Determine the objects you want to restore

After you find the deleted table in the Recycle Bin, determine what you want to restore. The full path and name of the recovered object.

3. Restore the object

To restore the object, use the following syntax:

<code>FLASHBACK TABLE <table_name> TO BEFORE DROP;</code>
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4. Confirm the restore

After the recovery is completed, use the following query to confirm that the data has been recovered:

<code>SELECT * FROM <table_name>;</code>
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Note:

  • Recovery can only be performed immediately after the table is deleted This method is only effective when.
  • If the Recycle Bin has been archived or is full, deleted data may not be recovered.
  • Make sure you have permission to restore deleted tables.
  • If you cannot recover your data using the Recycle Bin, your only option is to restore using a database backup.

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