SQL CHEAT SHEET

 

Note: SELECT queries are the only queries that I will expect you to memorize.  The others I will only expect you to understand.

 

Select Query

 

SELECT <fields>  AS <alias>

FROM <tables>

WHERE

          <join rules> AND

          <criteria rules>

ORDER BY <field> [ASC/DESC]

 

Example:

          select AuthorName AS Author, BookName AS Title

          from BookTable, AuthorTable

          where BookTable.AuthorID = AuthorTable.AuthorID AND

          BookTable.PublishedDate < 1976

          order by AuthorTable.AuthorName

 

Update Query

 

UPDATE <table>

SET <field> = <value>

WHERE <criteria>

 

Example:
          update CountryTable

          set CountryName = ¡°Samoa¡±

          where CountryName like ¡°Western Samoa¡±

 

Delete Query

 

DELETE <field>

FROM <table>

WHERE <criteria>

 

Exmaple:

          delete TakesClassTable.*

          from TakesClassTable, StudentTable

          where

            TakesClassTable.StudentID = StudentTable.StudentID AND

          StudentTable.PaidTuition = false

 

Insert Query

 

INSERT INTO <table> (<fields>)

VALUES (<values>)

 

Example:

          insert into ClassTable (ClassID, ClassName, ClassTime)

          values (45, ¡°CSB184¡±, ¡°TTh1-3¡±)