Обсуждение: Concatenating strings

Hi all.

How do you add two strings in sql?

I have a name field in one of my tables and all the names are in uppercase
(like "FREDRIK").
I want to get the names in the usual format (First letter capitalized)
"Fredrik". How
do I do that?

I've tried:

SELECT SubStr(fname,1,1) + Lower(SubStr(fname,2,100)) FROM employee;

But '+' doesn't seem to work.

If you can't concatenate two strings, any other idea how to do this?


/Fredrik Thunberg
Datessa AB
+46733177128
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Hi

standard function  initcap() should do the job. May be , first you need
to do  lower()
and then do initcap().

You can add two columns   col1||col2

Syntax of substring is like substring($string from pos for len)

Vijay

Fredrik Thunberg wrote:
>
> Hi all.
>
> How do you add two strings in sql?
>
> I have a name field in one of my tables and all the names are in uppercase
> (like "FREDRIK").
> I want to get the names in the usual format (First letter capitalized)
> "Fredrik". How
> do I do that?
>

"Fredrik Thunberg" <fredrik@datessa.se> writes:
> How do you add two strings in sql?

With the SQL-standard concatenation operator: ||

            regards, tom lane

Frederick,

> How do you add two strings in sql?

You use the ANSI SQL 92 standard concatination operator, ||

e.g. first_name || ' ' || last_name

> I have a name field in one of my tables and all the names are in
> uppercase
> (like "FREDRIK").
> I want to get the names in the usual format (First letter
> capitalized)
> "Fredrik". How
> do I do that?

Well, the good news is that someone has already written a function to do
what you want in one operation.  see:
http://www.postgresql.org/idocs/index.php?functions-string.html

Ah, a former MS SQL Server user.  Transact-SQL uses quite a few bits of
syntax which are *not* ANSI SQL 92 standard; the use of "+" for
concatination is one of them.  It would pay for you to pick up an
introductory PostgreSQL book just to get a handle on the differences
(also, training in real SQL 92 syntax will help you with other
databases, such as Oracle or FrontBase).

-Josh Berkus

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