Database tables: A database usually contains one or more tables, each table is identified by a name such as "class" or "students". Tables contain records (rows) with data.
SQL Statements: The most of the performance you do on database is completed by SQL Statement.
Note: SQL is not case sensitive.
Some database system requires semicolon at the end of each SQL command, but it's not a necessity. Semicolon is the standard method to separate each SQL Statement and enable that one or more SQL statements can be performed in one same Servers command.
Some database system doesn't require semicolon such as MS Access and SQL Server 2000.
SQL is divided into DML (Data Manipulation Language) and DDL (Data Definition Language). The query and update commands constitute DML part (SELECT, UPDATE, DELETE, INSERT INTO). DDL enables us to create and delete tables. It also defines indexes (keys), specifies links between tables, and imposes constraints between tables. Some important DDL statements in SQL: CREATE DATABASE, ALTER DATABASE, CREATE TABLE, ALTER TABLE, DROP TABLE, CREATE INDEX, DROP INDEX.
Previous article is SQL introduction.
EaseUS Todo Backup Advanced Server is professional backup and restore software for Microsoft SQL Server 2008, 2005, 2000. It can backup SQL Server database with full backup, differential backup or transaction log backup and save backup file to local hard disk, tape or network storage device (see Tape backup vs disk backup), and restore database with a new name or move database files to a new location, restore database to the point of failure. See SQL Server disaster recovery plan
Free download and try all features without limitations.
Data recovery software
Data backup software
Partition manager software
Partition recovery software
Mac clean software
Technical support: email@example.com