Characteristics of SQL Commands

Here you can see that SQL commands follow a number of basic rules:

• SQL keywords are not normally case sensitive, though this in this tutorial all commands (SELECT, UPDATE etc) are upper-cased.

• Variable and parameter names are displayed here as lower-case.

• New-line characters are ignored in SQL, so a command may be all on one line or broken up across a number of lines for the sake of clarity.

• Many DBMS systems expect to have SQL commands terminated with a semi-colon character.

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