NULL vs SPACE

[arsenal1983]

Hello, I would like to create column in loading script base on the source column. My new column should be a flag:

if (isnull(SOURCE), 1, 0)

The problem is that in source data sometimes I have null but sometimes it is space or even several spaces. I tried with TRIM function:

if(isnull(trim(SOURCE)), 1, 0)

but it did not work.

Could you help me please?

[robert_mika · Accepted solution]

try:

if(Len(TRIM((SOURCE))=0....