What does dump do in SQL?

What is data dump method?

If your database is large or takes too long to pack, dumping a database is the preferred backup method. This method creates a dump ( . dmp ) file containing only the database metadata, instead of producing a pack file that contains the file system data as well as the metadata.

How do you dump a database?

To dump/export a MySQL database, execute the following command in the Windows command prompt: mysqldump -u username -p dbname > filename. sql . After entering that command you will be prompted for your password.

How do you dump in SQL?

Export

  1. Log into your server via SSH.
  2. Use the command cd to navigate to a directory where your user has write access. …
  3. Export the database by executing the following command: mysqldump –add-drop-table -u admin -p`cat /etc/psa/.psa.shadow` dbname > dbname.sql. …
  4. You can now download the resulting SQL file.

What is a dump file in Excel?

A dump file is a snapshot that shows the process that was executing and modules that were loaded for an app at a point in time. A dump with heap information also includes a snapshot of the app’s memory at that point. … Dumps are mostly used to debug issues from machines that developers don’t have access to.

What Cannot have a trigger associated with it?

Since triggers execute as part of a transaction, the following statements are not allowed in a trigger: All create commands, including create database, create table, create index, create procedure, create default, create rule, create trigger, and create view. All drop commands. alter table and alter database.

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What is dump in DBMS?

A database dump (also: SQL dump) contains a record of the table structure and/or the data from a database and is usually in the form of a list of SQL statements. A database dump is most often used for backing up a database so that its contents can be restored in the event of data loss.

What is difference between restore and recovery in Oracle?

What is the difference between restoring and recovering?[edit] Restoring involves copying backup files from secondary storage (backup media) to disk. This can be done to replace damaged files or to copy/move a database to a new location. Recovery is the process of applying redo logs to the database to roll it forward.

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