The CREATE command is a fundamental DDL command used to define and structure database objects like tables, schemas, views, and indexes. 1. Purpose: It sets up the framework for storing and managing data by defining objects before any data is inserted. 2. Examples: Commands such as CREATE TABLE, CREATE VIEW, and CREATE INDEX establish database structures. 3. Irreversible Changes: Unlike DML commands, changes made by DDL commands, such as CREATE, are persistent and affect the database schema. 4. DDL Classification: Commands in this category include CREATE, ALTER, and DROP, all related to defining and modifying the database schema. The CREATE command is indispensable for initiating a database system, ensuring proper data organization and storage. Why Other Options Are Incorrect: • A) SELECT: A DML command used to retrieve data, not to define database structures. • B) INSERT: A DML command for adding records into a table. • D) UPDATE: A DML command used to modify existing data in a table. • E) COMMIT: A TCL command that saves transactions to the database, unrelated to schema definition.
24% of 75 + 36% of 100 = ?% of 180
What is the value of 7/9-11/12+12/16-1/8?
(3/7) of 700 + 33(1/3)% of 339 - 69 =?
∛157464 =?
(286 ÷ 11 + 14) × 5 = 40 + 25% of ?
√0.49 + √6.25 + √1.44 + √1.21 =? % of 125
Simplify the following expression.
(3-3 × 3 + 3 ÷ 3 + 3 × 5) × 2 of 5 + (2 + 2 ÷ 2 + 2 × 2 - 2)
180 ÷ 3 of 2 = 102 – ?
25% of 400 + 3 × 102 = ?2
(12 × 48 ÷ 6) ÷ 2 + ? = 106