sqlite
Database; use; embedded relational database
delete
UK[d??li:t] US [di?lit]
vt.& vi.Delete
SQLite Delete function syntax
Function:SQLite's DELETE query is used to delete existing records in the table. You can use a DELETE query with a WHERE clause to delete selected rows, otherwise all records will be deleted.
Syntax: DELETE FROM table_name WHERE [condition];
SQLite Delete function example
COMPANY 表有以下記錄: ID NAME AGE ADDRESS SALARY ---------- ---------- ---------- ---------- ---------- 1 Paul 32 California 20000.0 2 Allen 25 Texas 15000.0 3 Teddy 23 Norway 20000.0 4 Mark 25 Rich-Mond 65000.0 5 David 27 Texas 85000.0 6 Kim 22 South-Hall 45000.0 7 James 24 Houston 10000.0 下面是一個實例,它會刪除 ID 為 7 的客戶: sqlite> DELETE FROM COMPANY WHERE ID = 7; 現(xiàn)在,COMPANY 表有以下記錄: ID NAME AGE ADDRESS SALARY ---------- ---------- ---------- ---------- ---------- 1 Paul 32 California 20000.0 2 Allen 25 Texas 15000.0 3 Teddy 23 Norway 20000.0 4 Mark 25 Rich-Mond 65000.0 5 David 27 Texas 85000.0 6 Kim 22 South-Hall 45000.0 如果您想要從 COMPANY 表中刪除所有記錄,則不需要使用 WHERE 子句,DELETE 查詢?nèi)缦拢? sqlite> DELETE FROM COMPANY; 現(xiàn)在,COMPANY 表中沒有任何的記錄,因為所有的記錄已經(jīng)通過 DELETE 語句刪除。