Returns an integer representing the type of data the column contains.
Parameters
iIndex - A 1 based column index.
Remarks
The GetCol() function always return the data as an string, the GetColType function can be used to determine the type of the column that conversion of the string can be done after extraction. The following types exists:
TYPE_BOOL - Boolean value
TYPE_NUMERIC - Numeric
TYPE_SHORT - Short
TYPE_LONG - Long
TYPE_DOUBLE - Double (real)
TYPE_DATETIME - Data/time
TYPE_STRING - String
TYPE_UNKNOWN - Unknown field type / not supported
TYPE_BYTES - Bytes
TYPE_LONG_BINARY - Long binary
TYPE_LONG_CHAR - Long char
TYPE_BLOB - Binary device
TYPE_DBMS_SPECIFIC - Client specific data (no conversion)