Wat is een lange integer?
Integer: Voor gehele getallen tussen -32.768 en +32.767. Vereiste opslagruimte is 2 bytes. Lange integer: Voor gehele getallen tussen -2.147.483.648 en +2.147.483.647. De benodigde opslagruimte is vier bytes.
Hoe start je MS Acces?
Klik in Access op Bestand >Nieuw….Als in Access een dialoogvenster Aanmelden wordt weergegeven met een lege lijst met gebruikers:
- Klik op Nieuwe gebruiker.
- Vul het formulier Gebruikersgegevens in.
- Klik op Opslaan & sluiten.
- Selecteer de zojuist ingevoerde gebruikersnaam en klik op Aanmelden.
What are the data types real and double precision?
The data types real and double precision are inexact, variable-precision numeric types. In practice, these types are usually implementations of IEEE Standard 754 for Binary Floating-Point Arithmetic (single and double precision, respectively), to the extent that the underlying processor, operating system, and compiler support it.
What is double in datatype?
Double is also a datatype which is used to represent the floating point numbers. It is a 64-bit IEEE 754 double precision floating point number for the value. It has 15 decimal digits of precision.
What does double precision mean in Computer Science?
Double precision means the numbers takes twice the word-length to store. On a 32-bit processor, the words are all 32 bits, so doubles are 64 bits. What this means in terms of performance is that operations on double precision numbers take a little longer to execute. So you get a better range, but there is a small hit on performance.
What is the range of the double precision type?
The double precision type typically has a range of around 1E-307 to 1E+308 with a precision of at least 15 digits. Values that are too large or too small will cause an error.