Thursday, 22 September 2016

DDL dan DML pada mysql


Data Definition Language (DDL)

 CREATE/DROP DATABASE dbname; --> membuat database
 SHOW DATABASES; --> melihat database
 USE dbname; --> menggunakan database yang ada
 CREATE TABLE table name (field name type,..,constraints,..); --> membuat tabel dalam database
 SHOW TABLES; --> melihat tabel yang ada
 SHOW COLUMNS FROM table name; --> melihat kolom yang sudah ada
 DROP TABLE table_name; --> menghapus tabel dalam database



Data Manipulation Language (DML) 

 INSERT INTO table_name [(field_name,..)]
VALUES (value );
 DELETE FROM table_name 
WHERE condition;
 UPDATE table_name
SET field_name=value,..
[WHERE condition];
 SELECT field_name [as field_name],..
FROM table name
[WHERE condition]
[ORDER BY field_name];
 =, <, >, AND, OR, NOT
(field_name LIKE “_%….”)

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