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ZRick
Obsidian | Level 7

Most of time, I use "|" as concatenation symbol to do the operation, like: "sys"||_N_.

I also saw some cases that use "!" to do the concatenation.

Can someone tell me when I need to do the concatenation using "!"?

4 REPLIES 4
PGStats
Opal | Level 21

Both symbols can be used interchangeably.

PG

PG
Jay_TxOAG
Quartz | Level 8

|| won't work on z/OS (at least it didn't work in my TSO session)...but !! (double exclamation points) will. I believe both Windows and UNIX will accept ||

Of course the CAT series of functions (CAT CATS CATT CATX) will work anywhere (http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a002257060.htm)

ballardw
Super User

When to use !! instead of || : When your keyboard or OS doesn't support ||. This goes back to much older keyboards with many fewer keys, including when EVERYTHING WAS ALL CAPS.

Ksharp
Super User

It seems that it is difference between EDBIC and ASCII .

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