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You can I display special Unicode characters in my result set on my SQL Server?
e.g. How can i display those characters ☺♦♦?
Well due to the fact that your question is very unspecific here are some solutions.
You need to specify a string as unicode string. This can be achieved by adding an N in front of the string. See example:
SELECT N'☺♦♦' as a, '☺♦♦' as b
Result:
a b
---- ----
☺♦♦ ???
If you want to store those symbols, you need a type as nvarchar or nchar.
Hopefully this helps you.
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I want to find if the difference between 2 columns. How do I achieve that?
For example,
select(col1-col2) output is 1
select(col2-col1) output is -1
Is there a way to get just the difference as 1 without the negative (-) sign?
use abs() function
select abs(col2-col1) as diff
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Team,
I need a sql query or function which will create the mirror image of string.
Thanks
Rajeev
If "mirror" is reversed text use:
SELECT REVERSE('my_text') FROM dual;
EDIT:
SqlFiddleDemo
SELECT t
,REVERSE(t) AS Mirror1
,TRANSLATE(t, 'abcdefghijklmnopqrstuvwxyz',N'ɐqɔpǝɟbɥıظʞןɯuodbɹsʇnʌʍxʎz') AS Mirror2
,TRANSLATE(REVERSE(t), 'abcdefghijklmnopqrstuvwxyz',N'ɐqɔpǝɟbɥıظʞןɯuodbɹsʇnʌʍxʎz') AS Mirror3
FROM tab;
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I need to complete cards numbers in sql. I have the prefix =11111 and the number of the card which is variable, therefore it could be '25' or '2130' but at the end I must have 14 numbers. So I need to fill spaces with zeros.
I've read about 'LPAD' but I don't understand very well this method.
You could use lpad, but if you're starting with a number you could use a 9-digit format model instead, and concatenate that onto your prefix:
select '11111' || to_char(25, 'FM000000000') from dual;
11111000000025
The FM format modifier stops Oracle adding a space for a potential +/- sign indicator.
SQL Fiddle demo
Use the ZEROFILL attribute.
But your database should only be responsible for saving data and not changing it before saving.
The best way would be to send the zerofilled data to the database server.
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I have a database table that contains a column for pricing.
Its very old, so it was written before i understood datatypes. so we are using varchar for a money value.
Ive noticed some columns have $ in them, so what I'm wondering is... is there a way with SQL Server to perform an update of the table and remove any instances of non numeric characters or at the very least remove the $ from the string in the columns in one go ?
I hope this is possible.
Update tbl
SET price = replace(price, '$', '')
Here is the replace definition
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Working on 10g.
I am writing a query to sort a list, and sorting is an important aspect of the list.
I have already isolated the fraction from the mixed number.
I have data that come in fraction form. (3/4, 5/8, 1/2)
I need to convert them to decimal to be able to 'order by' with them.
Any help would be appreciated.
This will blow up badly if the input is not a fraction such as 3/4, 5/8, etc., but here goes:
CAST(SUBSTR(theFraction, 1, INSTR(theFraction, '/')-1) AS NUMBER) /
CAST(SUBSTR(theFraction, INSTR(theFraction, '/')+1) AS NUMBER)
The logic is basically "get everything before the '/' and convert it to a number, then divide it by everything after the '/' converted as a number".