Databases
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What is a database?
A way of holding data in an organised way so that searching for data items meeting certain criteria is easy
In a table, what is the name given to a row
Records Each record will have identical record structures
In a table, what is the name given to a column?
Fields Each field has a defined field type, e.g. text, Boolean, numeric
What is the format of an SQL statement?
SELECT - List the filed(s) you want to display FROM - List the table the data will come from WHERE - List search criteria here ORDER BY - Sorts data in ASC or DESC order
Write an SQL statement for finding the total number of female members in the ClubMember table
SELECT COUNT FROM ClubMember WHERE Gender = “F”
Write an SQL statement for finding the total number of eruptions of volcanoes in Italy recorded in the Volcano table
SELECT SUM(TimesErupted) FROM Volcano WHERE County = “Italy”