PL/SQL Append string to existing string

Hello expert,
Currently these values exist in the CRM_CASE table
CRM_CASE_ID                  CRM_GUID
CAS-1045522-V1F4F9          689fe3ed-be73-e711-811b-005056
CAS-1053908-R1H3X2          ec6ea10b-4f7d-e711-811b-005056
CAS-1056154-N0T8S4          66592627-df7e-e711-811b-005056
The CRM_GUID strings should have ‘85df8c’  at the end of each string. Like

CRM_CASE_ID                 CRM_GUID
CAS-1045522-V1F4F9         689fe3ed-be73-e711-811b-00505685df8c
CAS-1056154-N0T8S4         66592627-df7e-e711-811b-00505685df8c
CAS-1053908-R1H3X2         ec6ea10b-4f7d-e711-811b-00505685df8c

So a query was drafted

SET CRM_GUID = CRM_GUID + ‘85df8c’
where CRM_CASE_ID in

This returns

Error at Command Line:2 Column:26
Error report:
SQL Error: ORA-00911: invalid character
00911. 00000 -  "invalid character"
*Cause:    identifiers may not start with any ASCII character other than
           letters and numbers.

Pretty sure that the plus sign is the fly in the ointment. But research
does not reveal how to append a string to a string.

What is the correct syntax to do this?


Allen in Dallas
Allen PittsBusiness analystAsked:
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Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
In Oracle you use || instead of + for string concatenation.
But the error message results from typographical quotes ‘ and ’ instead of ticks ', enclosing 85df8c.

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Bill PrewIT / Software Engineering ConsultantCommented:
Qlemo has given you the answer, points to him if that works for you, but just in case it's still not clear your query should look like.

SET CRM_GUID = CRM_GUID || '85df8c'
where CRM_CASE_ID in 

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Vaibhav GoelMSBI , SQL ConsultantCommented:
Hello Allen

We can also use CONCAT for concatenation of strings in Oracle.

where CRM_CASE_ID in

More good read from techonthenet

Bill PrewIT / Software Engineering ConsultantCommented:
It's true you can use the Concat() function for string concatenation, and I certainly have used it when it made sense.  Typically for me this is when several chunks have to be joined, and perhaps some of them aren't simple string literals or columns.  Then it can aid readability.

Just be aware that Concat() is a function, whereas || is an operator.  My old school training taught that functions carried more overhead than operators and so could perform slightly slower.  As a result I often prefer operators or SQL statements to functions.  On today's fast computers it often makes no different, and readability can be different, but just wanted to mention this subtle different for information.

Allen PittsBusiness analystAuthor Commented:
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