How do I drop a view in SQLite?

How do I drop a view in SQLite?

SQLite DROP VIEW

1. First, specify the name of the view that you wants to remove after the DROP VIEW keywords.
2. Second, specify the schema of the view that you want to delete.
3. Third, use the IF EXISTS option to remove a view only if it exists. If the view does not exist, the DROP VIEW IF EXISTS statement does nothing.

How do I DELETE a sqlite3 database?

To create a new database, just do sqlite_open() or from the command line sqlite3 databasefilename . To drop a database, delete the file. you can do this from the eclipse view called “FileBrowser” out of the “Android” Category for example. Or directly on your emulator or phone.

How do I DELETE a SQLite database in Windows?

If you need to completely remove a database, you will need to delete the database file from the file system. Then you can navigate to the file in the file system and delete it.

How do I DELETE a table in SQLite?

If you want to remove a table in a specific database, you use the [schema_name.] explicitly. In case the table has dependent objects such as triggers and indexes, the DROP TABLE statement also removes all the dependent objects. The DROP TABLE statement performs an implicit DELETE statement before dropping the table.

How do I create a view in sqlite3?

1. Syntax. create-view-stmt: hide. CREATE TEMP TEMPORARY VIEW IF NOT EXISTS schema-name . view-name ( column-name ) AS select-stmt ,
2. Description. The CREATE VIEW command assigns a name to a pre-packaged SELECT statement. Once the view is created, it can be used in the FROM clause of another SELECT in place of a table name.

How use inner join in SQLite?

SQLite INNER JOINS return all rows from multiple tables where the join condition is met.

1. Syntax. The syntax for the INNER JOIN in SQLite is: SELECT columns FROM table1 INNER JOIN table2 ON table1.column = table2.column;
2. Visual Illustration.
3. Example.
4. Old Syntax.

How do I exit sqlite3?

Ctrl + D will get you out of the SQLite 3 database command prompt. That is: hold the “Ctrl” button then press the lowercase d key on your keyboard at the same time and you will escape the SQLite 3 command prompt.

How do I drop a column in SQLite?

DB Browser for SQLite allows you to add or drop columns. In the main view, tab Database Structure , click on the table name. A button Modify Table gets enabled, which opens a new window where you can select the column/field and remove it.

What does drop table do in SQLite?

The DROP TABLE statement removes a table added with the CREATE TABLE statement. The name specified is the table name. The dropped table is completely removed from the database schema and the disk file. The table can not be recovered.

How do I drop a database in SQLite?

SQLite Drop Database. Unlike other Database management systems, there is no DROP DATABASE command in SQLite. If you want to drop a database, all you have to do is to delete the database file. Notes: You can’t create two databases in the same location with the same name, the database name is unique in the same directory.

How to create a new database in SQLite3?

To create a new database, just do sqlite_open()or from the command line sqlite3 databasefilename. To drop a database, delete the file. Reference: sqlite – Unsupported SQL

What is a view in SQLite?

The SQLite Create View Tool allows users to visually create views. A view is simply a stored query that can be selected against similar to a table. Once created, views act more or less like read-only tables. The contents of base tables are persistent whereas the contents of views are dynamically generated when they are used.

How do I run SQLite from a terminal window?

Windows users can double-click on the sqlite3.exe icon to cause the command-line shell to pop-up a terminal window running SQLite. However, because double-clicking starts the sqlite3.exe without command-line arguments, no database file will have been specified, so SQLite will use a temporary database that is deleted when the session exits.