Frequent question: How do I restore files in SQL Developer?

How do I restore a deleted file in SQL Developer?

There are some options:

  1. Flashback Query as. create table before_delete as select * from Table as of TIMESTAMP XX;
  2. Logminer if Oracle supplement log is enabled , you can get undo sql for your delete statement.

Where does SQL Developer save files?

The default location is: Windows: C:Documents and Settings<user-name>Application DataSQL Developer.

How do I restore default settings in SQL Developer?

7 Answers. You can go to the upper tab “WINDOW” and then click “Reset Windows to factory settings”.

Where is history in SQL Developer?

Well, as it turns out, SQL Developer has a SQL History button. Pressing the “F8” key, or from the “View” menu, select the menu option: This will bring up a new tab, which shows all the queries that have been run in the last while: Unfortunatly, the problem is that you can look, but you can’t really touch.

What is rollback in SQL?

In SQL, ROLLBACK is a command that causes all data changes since the last BEGIN WORK , or START TRANSACTION to be discarded by the relational database management systems (RDBMS), so that the state of the data is “rolled back” to the way it was before those changes were made.

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How do I know if flashback is enabled?

Use the following command to check if Flashback Database is enabled for your target database: SELECT FLASHBACK_ON FROM V$DATABASE; To enable Flashback Database: Ensure that you configure a fast recovery area and that the database is running in ARCHIVELOG mode.

How do I view connections in SQL Developer?

Adding the Connections tab in View

The first way you can add any SQL Developer tab (Connections, SQL History, Debugger or Dbms Output). To do this, click on the View menu bar and then Connections. The Connections tab will be visible default on the left .

How do I save connections in SQL Developer?

In short, to export connections in SQL Developer, the steps are:

  1. Open SQL Developer.
  2. Right click on the Connections item in the Connections tree, and select “Export Connections…”
  3. Select the connections you want to export.
  4. Specify the output file.
  5. Select either encrypt passwords or remove passwords.
  6. Click Finish.

How do I see connections in SQL Developer?

Configure Oracle SQL Developer Cloud Connection

  1. Run Oracle SQL Developer locally. The Oracle SQL Developer home page displays. …
  2. Under Connections, right click Connections. …
  3. Select New Connection. …
  4. On the New/Select Database Connection dialog, make the following entries: …
  5. Click Test. …
  6. Click Connect. …
  7. Open the new connection.

How do I change the view in SQL Developer?

The syntax for the CREATE OR REPLACE VIEW Statement in Oracle/PLSQL is: CREATE OR REPLACE VIEW view_name AS SELECT columns FROM table WHERE conditions; view_name. The name of the Oracle VIEW that you wish to create or replace.

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How do I clear a cache in Oracle SQL Developer?

To get consistent time measurements without being affected by caches, you’ll have to clear all caches before executing a query under test:

  1. Clear Oracle’s buffer_cache: alter system flush buffer_cache;
  2. Clear Oracle’s shared_pool: alter system flush shared_pool;

How do I view SQL history?

To view the job history log

  1. In Object Explorer, connect to an instance of the SQL Server Database Engine, and then expand that instance.
  2. Expand SQL Server Agent, and then expand Jobs.
  3. Right-click a job, and then click View History.
  4. In the Log File Viewer, view the job history.
  5. To update the job history, click Refresh.

How do I view SQL command history?

To access history commands:

  1. On the Workspace home page, click SQL Workshop and then SQL Commands. The SQL Commands page appears.
  2. Click the History tab. The list of commands in History appears in the display pane.
  3. Click the partial command displayed in the SQL column. The command appears in the editor.

What is Dba_hist_sqltext?

DBA_HIST_SQLTEXT displays the text of SQL statements belonging to shared SQL cursors captured in the Workload Repository. This view captures information from V$SQL and is used with the DBA_HIST_SQLSTAT view.