How do i create a trigger in postgresql?

Asked By: Tyreek Keebler
Date created: Thu, Jul 15, 2021 7:40 AM
Best answers
Answered By: Graciela Volkman
Date created: Thu, Jul 15, 2021 1:41 PM
To create a trigger on a table, the user must have the TRIGGER privilege on the table. The user must also have EXECUTE privilege on the trigger function. Use DROP TRIGGER to remove a trigger.
FAQ
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How do you create a simple database?

  1. Click the File tab.
  2. Choose New…
  3. Click an icon, such as Blank Database, or any database template…
  4. Click in the File Name text box and type a descriptive name for your database…
  5. Click the Create button to create your database file.

How do you create a simple database?

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How to create one table to another table in mysql?

You can create one table from another by adding a SELECT statement at the end of the CREATE TABLE statement:

  1. CREATE TABLE new_tbl [AS] SELECT * FROM orig_tbl;
  2. mysql> CREATE TABLE bar (UNIQUE (n)) SELECT n FROM foo;
  3. CREATE TABLE foo (a TINYINT NOT NULL) SELECT b+1 AS a FROM bar;

http://dtbrest.com/how-to-create-one-table-to-another-table-in-mysql

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How do i manually create a database in oracle 12c?

  1. Step 1: Decide on Your Instance's System Identifier (SID) ...
  2. Step 2: Create the Initialization Parameter File…
  3. Step 3: Connect to and Start the Instance…
  4. Step 4: Issue the CREATE DATABASE Statement…
  5. Step 5: Run Scripts to Build Data Dictionary Views…
  6. Step 6: Run Scripts to Install Additional Options.

How do i manually create a database in oracle 12c?

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TRIGGER - You cannot t give grants for trigger. There is no such thing. Triggers fire automatically whenever the trigger event is done on the table on which the the trigger is created. You only need to grant privilege on the table.