GetMinValue
Delivers the minimum value of a numeric, date or time field.
Compatibility
Available as of IDEA version 10.0
Syntax
GetMinValue(database as Variant, fieldName as String)
Parameters
database
Database name including the path(if needed). The file extension is not necessary. Alternatively the current database object can be provided.
fieldName
Name of the field to extract the minimum value from.
Return Value
Minimum value of the given numeric, date or time field.
Depending on the corresponding field data type the return values are provided as double, date or time value.
Remarks
If the function is used for a text, boolean or multistate field an exception will be thrown.
This function does not support a default value.
In case the underlying database is missing an exception shall be thrown. The same is valid in case the field does not exist.
Because IDEA is not supporting NULL values some results are treated specifically.
IDEA values are interpreted as NULL when
- a table has no records
- a field only contains erroneous data
- a date field provides date entry which consists only of zeros.
In case of a NULL numeric or time value (seconds since midnight) this function delivers zero(0).
In case of a NULL date value this function delivers 9999-12-31 as date value.
The developer has to check at least against the date return value to get a proper result.