EVL

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Float and Double

Float and double are standard C++ data types.

float

size: 4 Bytes, range: ± 3.4 × 10±38 (about 7 digits)

double

size: 8 Bytes, range: ± 1.7 × 10±308 (about 15 digits)

Except ‘sep=’, ‘null=’, ‘quote=’, ‘optional_quote=’, no other options are possible for these data types.

Note: Compared to decimal(m,n) data type, operating with floats and doubles (doing summations for example), usually leads to approximated values. So it is usually very good idea to avoid using these data types for money and such.

Example

With EVD file

sent_mb      float  sep="|"  null=""
received_mb  float  sep="\n" null=""

you can read source csv file like this:

0.321e12|1.234E-02
12.78E11|3.798