I need to display the 3 decimal values if the number having decimal value,
for suppose the number does not having decimal then will display zero's after decimal
I tried with TO_CHAR function but when i am converting to_char into TO_NUMBER it's displaying number with rounded values
Your question is a bit vague, but I guess you need something like
TO_CHAR(n, '999G990D000')
to show the zeros.
If you have privileged to change the SCHEMA, then you can do it this way:
ALTER TABLE TABLENAME Modify Attrib Number(10,3);
Related
I'm using oracle APEX 20.1 and have a report with a column that displays currency values.
Since I'm from Europe I need the currency symbol to be behind the value (unlike the typical $amount format you see often in America).
I achieved this by changing the column's format mask to 'FM999G999G999G999G990D00L'.
This works well so far, but visually I would prefer if there was a whitespace between the end of the number (D00) and the currency symbol (L). Is there a way to insert a static whitespace in this format string?
I already looked through oracle's documentation on currency format strings, but they do not seem to mention such an option to include an always-there whitespace or an arbitrary static character.
Thank you in advance.
You can't include punctuation or character literals in a number mask as you can for dates, unfortunately.
You can include a space as part of the currency symbol itself - that is a string, not a character, and can be up to 10 bytes:
to_char(<number>, 'FM999G999G999G999G990D00L', 'nls_currency='' $''')
though that then uses a fixed currency symbol, not the session value from the L format element; you can get it dynamically from the session parameters:
to_char(
<number>,
'FM999G999G999G999G990D00L',
(
select 'nls_currency='' ' || value || ''''
from nls_session_parameters where parameter = 'NLS_CURRENCY'
)
)
which is a bit ugly. And you might not actually want the session's currency symbol; it might be more appropriate to always use the symbol that's relevant to that data.
And I imagine neither of those will fit in to Apex's numeric column formatting, so you would probably need to do that to_char() call explicitly in your query and have Apex just treat it as a pre-formatted string. (I have no idea how formatting works in Apex - from your description I'm assuming there is somewhere you define a format mask for a column in an interactive grid or whatever; but maybe you are already calling to_char().)
You can also change the currency symbol for the session:
alter session set nls_currency = ' €';
select to_char(123.45, 'FM999G999G999G999G990D00L') from dual;
123.45 €
which might be an option but would affect all currency fields - where the L format element is used - though maybe that's a good thing.
db<>fiddle.
I'm trying to format the value to whole number (removing decimals) but when the value is a negative number less than 0, it's showing -0 instead of just 0. Is there a way to make it show as 0?
select to_char(-0.09,'9,999,999,999,999,990') from dual;
TO_CHAR is just format the number, not to round it up. SO, use ROUND first and then format as you need.
select to_char(round(-0.09),'9,999,999,999,999,990') from dual;
If you want to remove the decimals try the following solution.
SELECT TO_CHAR(TRUNC(-0.09),'9,999,999,999,999,990') FROM DUAL;
If you want to round the values go with the solution which Noel has suggested. Ideally, rounding the value is logical than just removing the decimals.
In Oracle, while trying to concatenate two columns of both Number type and then trying to take MAX of it, I am having a question.
i.e column A column B of Number data type,
Select MAX(A||B) from table
Table data
A B
20150501 95906
20150501 161938
when I’m running the query Select MAX(A||B) from table
O/P - 2015050195906
Ideally 20150501161938 should be the output????
I am trying to format column B like TO_CHAR(B,'FM000000') and execute i'm getting the expected output.
Select MAX(A || TO_CHAR(B,'FM000000')) FROM table
O/P - 2015011161938
Why is 2015050195906 is considered as MAX in first case.
Presumably, column A is a date and column B is a time.
If that's true, treat them as such:
select max(to_date(to_char(a)||to_char(b,'FM000000'),'YYYYMMDDHH24MISS')) from your_table;
That will add a leading space for the time component (if necessary) then concatenate the columns into a string, which is then passed to the to_date function, and then the max function will treat as a DATE datatype, which is presumably what you want.
PS: The real solution here, is to fix your data model. Don't store dates and times as numbers. In addition to sorting issues like this, the optimizer can get confused. (If you store a date as a number, how can the optimizer know that '20141231' will immediately be followed by '20150101'?)
You should convert to number;
select MAX(TO_NUMBER(A||B)) from table
Concatenation will result in a character/text output. As such, it sorts alphabetically, so 9 appears after 16.
In the second case, you are specifiying a format to pad the number to six digits. That works well, because 095906 will now appear before 161938.
The Date format can be customized in Oracle SQL Developer, how Decimal format can be specified? By that I mean number of decimal digits.
In Tools>Preferences>Database>NLS we only have decimal separator, nothing else.
Thank you in advance.
There is no option in Preferences to my knowledge. You can use to_char function to display the decimal digits.
An example:
Try this in HR schema:
select to_char(salary,'999999.000'), employee_id from employees;
I'm having trouble with TO_NUMBER function second and third parameters. Does one of them depend on the other one? How does nls_params parameter work? I can't understand how the the result of the query
SELECT TO_NUMBER('17.000,23',
'999G999D99',
'nls_numeric_characters='',.'' ')
REFORMATTED_NUMBER
FROM DUAL;
can be 17000.23. Could somebody please explain the process of the above conversion.
P.S. The above query is taken from an Oracle Database SQL Expert Certificate preparation book.
you are telling the TO_NUMBER function that,
the two characters ,. in nls_numeric_characters represent the decimal and thousand seperator
G (thousands seperator) = .
D (decimal seperator) = ,
so it sees the number as seventeen thousand point twenty three.
see: http://download.oracle.com/docs/cd/B13789_01/olap.101/b10339/x_stddev022.htm#i78653
Now, I'll answer my own question. While using TO_NUMBER function I missed the important point that, whatever I get from TO_NUMBER function is going to be a number. And a number does not include anything else than decimal point and E scientific notation. So 17,788.99 is not actually a number but is rather the string representation of 17788.99.
If we try to subtract 500 from 17,788.99 we'll fail.(Well, Oracle implicitly converts numeric strings to numbers and vice-versa, but principally we can't perform arithmetic operations between strings and numbers). I'm sure that TO_NUMBER function is almost never used to select a column value. It's rather used to be able to make arithmetic operations. Instead, we use TO_CHAR to show a column value or any numeric expression in a neat, easy to read format. The fomat models and nls_params are not only for TO_NUMBER function, but for TO_CHAR as well.