Transaction Control Language (TCL) is a subset of SQL that deals with managing transactions in a database. Transactions are a sequence of one or more SQL statements executed as a single unit of work, ...
a. CREATE: Used to create database objects like tables, indexes, views, etc. b. ALTER: Modifies the structure of existing database objects. c. DROP: Deletes database objects. DML commands are used to ...
一部の結果でアクセス不可の可能性があるため、非表示になっています。
アクセス不可の結果を表示する