|| (Concatenation)
The || (two vertical bars) function returns a single concatenated character
string made up of two or more character strings. CHAR||CHAR will return
a CHAR string; everything else will return a C STRING.
All blanks are preserved during concatenation. Use the TRIM function
to eliminate blanks if desired.
Syntax
string || string[ || string[...]]
string
string can be a literal or reference column data
|| (two vertical bars)
Required. The || (double vertical bars) is the concatenation character.
It goes between two character strings to be concatenated together.
Example
select company,
CUSTOMERS.LASTNAME || ', ' || CUSTOMERS.FIRSTNAME
from customers
where company = 'systems'
OR
select
PRODUCTS.PRODUCT_NO || ' is the product number for ' || PRODUCTS.DESCRIPTION
from products
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