Fichas
Sin título
Fichas del conjunto (9)
- 1what are the different data types?script, text, real number,
- 2fields, records and tablesa field is the column a record is a row and tables are them all together
- 3what is validation?validation checks to see that data being entered is sensible and reasonable.
- 4what are the advantages of using a database?faster to find data that in a paper based system
can be found easily and edited
passwords can be set - 5what is a wildcard?A wildcard is used when to stand for any character you don't know exactly in a query
- 6what is a primary key?a primary key is uniquely identifies each record.
- 7what is a databasea database is a collection data that is held together in an organised and logical way.
- 8what is the difference between searching and sorting data?searching is locating specific information using a query and sorting data means putting the data in a specific order.
- 9what is meant by a report?reports are used to present the specific outputs from an info handling system usually as a printout
Información
- Descripción
- Fichas sobre Sin título, creado por AsfiaMohsin el 29/01/2015.
- Creado por
- AsfiaMohsin
- Visitas
- 0
- Valoración