If it's of help to anybody else:
Crystal 9.5 and XI R2
P.SQL v8
Datafile version 6/7
When linking two files, the string fields would not link if field was part of multi-segment index (in both of the files).
DB1 {IN-CRC-H.ShopOrderNo} - field was index 0 of two different 2-segment indexes
DB2 {SHOPHDR.OrderNumber} - field was index 0 of single 2-segment index
I added another index to DB2 for OrderNumber only AND specified the index for the link to use. Report works. I left DB1 alone.
Crystal 9.5 and XI R2
P.SQL v8
Datafile version 6/7
When linking two files, the string fields would not link if field was part of multi-segment index (in both of the files).
DB1 {IN-CRC-H.ShopOrderNo} - field was index 0 of two different 2-segment indexes
DB2 {SHOPHDR.OrderNumber} - field was index 0 of single 2-segment index
I added another index to DB2 for OrderNumber only AND specified the index for the link to use. Report works. I left DB1 alone.