SQLite Tutorial
Advanced SQLite
SQLite Interfaces
SQLite Useful Resources
Selected Reading
- SQLite - DISTINCT Keyword
- SQLite - HAVING Clause
- SQLite - GROUP By Clause
- SQLite - ORDER By Clause
- SQLite - LIMIT Clause
- SQLite - GLOB Clause
- SQLite - LIKE Clause
- SQLite - DELETE Query
- SQLite - UPDATE Query
- SQLite - AND & OR Clauses
- SQLite - WHERE Clause
- SQLite - Expressions
- SQLite - Operators
- SQLite - SELECT Query
- SQLite - INSERT Query
- SQLite - DROP Table
- SQLite - CREATE Table
- SQLite - DETACH Database
- SQLite - ATTACH Database
- SQLite - CREATE Database
- SQLite - Data Type
- SQLite - Syntax
- SQLite - Commands
- SQLite - Installation
- SQLite - Overview
- SQLite - Home
Advanced SQLite
- SQLite - Useful Functions
- SQLite - Date & Time
- SQLite - VACUUM
- SQLite - EXPLAIN
- SQLite - Injection
- SQLite - AUTOINCREMENT
- SQLite - Subqueries
- SQLite - Transactions
- SQLite - Views
- SQLite - TRUNCATE Command
- SQLite - ALTER Command
- SQLite - INDEXED By Clause
- SQLite - Indexes
- SQLite - Triggers
- SQLite - ALIAS Syntax
- SQLite - NULL Values
- SQLite - UNIONS Clause
- SQLite - JOINS
- SQLite - Constraints
- SQLite - PRAGMA
SQLite Interfaces
SQLite Useful Resources
Selected Reading
- Who is Who
- Computer Glossary
- HR Interview Questions
- Effective Resume Writing
- Questions and Answers
- UPSC IAS Exams Notes
SQLite - ATTACH Database
SQLite - ATTACH Database
Consider a case when you have multiple databases available and you want to use any one of them at a time. SQLite ATTACH DATABASE statement is used to select a particular database, and after this command, all SQLite statements will be executed under the attached database.
Syntax
Following is the basic syntax of SQLite ATTACH DATABASE statement.
ATTACH DATABASE DatabaseName As Apas-Name ;
The above command will also create a database in case the database is already not created, otherwise it will just attach database file name with logical database Apas-Name .
Example
If you want to attach an existing database testDB.db, then ATTACH DATABASE statement would be as follows −
sqpte> ATTACH DATABASE testDB.db as TEST ;
Use SQLite .database command to display attached database.
sqpte> .database seq name file --- --------------- ---------------------- 0 main /home/sqpte/testDB.db 2 test /home/sqpte/testDB.db
The database names main and temp are reserved for the primary database and database to hold temporary tables and other temporary data objects. Both of these database names exist for every database connection and should not be used for attachment, otherwise you will get the following warning message.
sqpte> ATTACH DATABASE testDB.db as TEMP ; Error: database TEMP is already in use sqpte> ATTACH DATABASE testDB.db as main ; Error: database TEMP is already in useAdvertisements