Cast and convert

Hi Team,
could you please tell me where do we use cast and convert functions.
What is the main difference between these two with examples.
Thanks in advance.
Mamatha

I do remember using CAST when creating views with NULL values as columns (For some purpose it was required).
If you dont use CAST when used null as column, the view column will be created as VARCHAR2(0). This will be an issue in some reporting tools.
So using CATS you can change the data type to NUMBER or VARCHAR(50) (Example)
SQL> create or replace view v1 as select null as col1 from dual;
View created.
SQL> desc v1
Name                                      Null?    Type
COL1                                               VARCHAR2
SQL> create or replace view v1 as select cast(null as varchar2(50)) as col1 from dual;
View created.
SQL> desc v1
Name                                      Null?    Type
COL1                                               VARCHAR2(50)CAST is also used with MULTISET, when working with OBJECT TYPEs..
Read Here
CONVERT is used when you want to see a particular text or column in a diffrent character set than the stored one. I have never used it , though...
Edited by: jeneesh on Oct 12, 2012 6:05 PM

Similar Messages

Error when using cast and convert to datetime

I run a stored procedure
usp_ABC
as
begin
delete from #temp1
where #temp1.ResID not in
( select Col1
from TableA
where ( @I_vId = -1 or Doc_Field_ID = @I_vId)
and ColA1 = 2 and FieldValue !=''
and cast ( FieldValue as DATETIME ) = cast (@strvalue_index as DATETIME)
and ResID = #temp1.ResID
and TypesId = @I_vTypeId
end
But return message "Conversion failed when converting date and/or time from character string.'
Format of Column FieldValue is nvarchar(400)
@strvalue_index = '05/05/2013'
So I see in article http://technet.microsoft.com/en-us/library/ms174450.aspx MS say about MS SQL Server and SQL Server Compact.
Then I re-write proc:
delete from #temp1
where #temp1.ResID not in
( select Col1
from TableA
where ( @I_vId = -1 or Doc_Field_ID = @I_vId)
and ColA1 = 2 and FieldValue !=''
and cast ( cast(FieldValue as nvarchar(200)) as DATETIME ) = cast (@strvalue_index as DATETIME)
and ResID = #temp1.ResID
and TypesId = @I_vTypeId
so stored run success.
I don't understand how?
When i run only statement in MS SQL Studio Management, the statement run success.
Thanks all,

No bad dates in my data.
Apparently you have. Or, as Johnny Bell pointed out, there is a clash with date formats. Did you try the query with isdate()?
For SQL 2008, you need
CASE WHEN isdate(FieldValue) = 1
THEN CAST (FieldValue AS datetime)
END =
CASE WHEN isdate(@strvalue_index) = 1
THEN CAST (@strvalue_index AS datetime)
END
Erland Sommarskog, SQL Server MVP, [email protected]
I think date formats is OK. So when I re-write stored:
and cast ( FieldValue as DATETIME ) = cast (@strvalue_index as DATETIME)
=>
and cast ( cast(FieldValue as varchar(200)) as DATETIME ) = cast (@strvalue_index as DATETIME)
the stored procedure will run success. I see in http://technet.microsoft.com/en-us/library/ms174450.aspx MS
has an IMPORTANT:
Important
When using CAST or CONVERT for nchar, nvarchar, binary, and varbinary,
SQL Server truncates values to maximum of 30 characters. SQL Server Compact allows 4000 for nchar and nvarchar, and 8000 for binary and varbinary. Due
to this, results generated by querying SQL Server and SQL Server Compact are different. In cases where the size of the data types is specified such as nchar(200), nvarchar(200), binary(400), varbinary(400), the results are consistent across SQL Server and
SQL Server Compact.
I can't explain it in this case

CAST and CONVERT not working

Hi,
I'm trying to create a adhoc report and need some help as i think the CONVERT and CAST aren't working the way am thinking. Please see the below SQL, When am executing this am getting the error :"
Msg 8114, Level 16, State 5, Line 1
Error converting data type varchar to numeric." The reason is i want the (1.5*cnt) to be shown just once per day and not repeat for each hour of the day as the revenue in the table is for the whole day
Thanks
SELECT l.*,
CASE
WHEN l.rn = l.cnt THEN l.erev
ELSE ''
END AS erev1
FROM (
SELECT
k. [plotnumber],
k.date,
CASE
WHEN k.rn = k.cnt THEN k.rev
ELSE ''
END AS rev,
1.5 * k.cnt)AS erev,
k.rn,
k.cnt
from (
SELECT [plotnumber],
[date],
[rev],
row_number() OVER( partition BY [plotnumber], date ORDER BY [plotnumber], date) AS rn,
count([spacenumber]) OVER( partition BY [plotnumber], date ) AS cnt
FROM mytbl)k)l

Sorry SQL-PRO
here it is, i used CAST as well but am just posting the CONVERT
SELECT L.*,
CASE
WHEN L.rn = L.cnt THEN L.erev
ELSE ''
END AS EREV1
FROM (SELECT k.zone,
k. [plotnumber],
k.date,
CASE
WHEN k.rn = k.cnt THEN k.rev
ELSE ''
END AS Rev,
1.5 * convert(numeric,K.cnt))AS EREV,
K.rn,
K.cnt
FROM (SELECT
[plotnumber],
[date],
[rev],
Row_number()
OVER(
partition BY [plotnumber], date
ORDER BY [plotnumber], date)
AS rn,
Count([spacenumber])
OVER(
partition BY [plotnumber],
date
) AS cnt
FROM MYTBL)k)L

CASE and CONVERT in Q of Q / CF7

Am converting CF5 code to CF7, and from documentation,
understand you can do more things in Query-of-Queries in CF7 than
you could in CF5.
But one QofQ that worked in CF5 won't work in CF7, returns an
error. It uses a variable that on occassion causes a division by
zero. This was never a problem with CF5, but CF7 won't take it. In
a normal query, I would handle by using a CASE statement. So my
question is: CAN YOU USE "CASE" statements in CF7 QofQ's? And what
about CONVERT or CAST? Can you use those as well, in CF7 QofQ's?
Thanks for any help/advice.
Gary

Thanks to you both for confirming what my testing and
doc-reading seemed to confirm. That you can't use CASE or CONVERT
in a CF7 QofQ. I think you're right about CAST but not sure if that
will solve my problem. QofQ in CF5 was "flaky" enough to permit a
division by zero. But I had to "account" for it in my
<CFOUTPUT>, in order to get the report to run and print 0%.
Here's my situation. Current CF5 (and CF7) in main query, I'm
calculating the values of a number of variables, let's say one of
them is A, the other B. In the old CF5 QofQ, I could do an "A
divided by B" as C, where C was my Percent Complete. And if B was
ever ZERO, the CF5 QofQ would still run. For some reason, QofQ in
CF5 was "flaky" enough to permit this.
But in my <CFOUTPUT>, I would have to check the value
of B. If it was equal to zero, then I'd set C = to "0%" or "N/A",
and output the results, which printed fine on the report. If B was
not = to ZERO, then I'd re-calculate the percentage, and set C = A
divided by B, and output "C%" in the report.
But with CF7, the template throws an error in the QofQ, when
it encounters an instance where B = 0. The error message is:
"Query Of Queries runtime error. java.lang.Double ->
BigDecimal "
I can resolve by adding a HAVING statement to first query,
only accepting records where B > 0. Problem with that, is I lose
the display of the record that I would like to have shown, but
showing 0%, versus not bein there at all. I did read in the docs,
before posting message, that CAST can be used in CF7 QofQ, but not
sure if that will resolve the problem.
I'll figure something out, but the main reason for posting
the initial question was to verify from others, that CASE and
CONVERT can NOT be used in CF7's QofQ's. The docs simply didn't
mention one way or the other regarding these 2 query functions.
If you or anyone else has any other suggestions, I would be
most grateful. Otherwise, as mentioned, will hopefully be able to
figure something out. Thanks again,
Gary

Cast and Concat functions error

Hi
I am getting below errors while doing cast and concat
The error message is nQSError: 22020] Function Concat does not support non-text types.
and my concat code is
CAST (cast(day(current_date) as char)||'-'||month(current_date)||'-'||cast(year(Core."Dim - Date"."Date") as char) AS DATE )
Error when tried it differently [nQSError: 27002] Near <)>: Syntax error [nQSError: 26012] .
CAST (concat(cast(day(current_date) as char)||'-'||month(current_date)||'-'||cast(year(Core."Dim - Date"."Date") as char)) AS DATE )
Please suggest.

Hi,
CASE WHEN Core."Dim - Date"."Year" = 'year(current_date)' THEN FILTER( AGO(Core."Fact - Spend and AP Invoice Distribution"."Spend YTD", Core."Date"."Year", 1)
USING Core."Dim - Date"."Date" = VALUEOF(NQ_SESSION."R_Current_Date")) WHEN Core."Dim - Date"."Year" <> 'year(current_date)' THEN FILTER( AGO(Core."Fact - Spend
and AP Invoice Distribution"."Spend YTD", Core."Date"."Year", 1) USING Core."Dim - Date"."Date" = CAST ( TRIM(BOTH ' ' FROM CAST ( EXTRACT( DAY FROM CURRENT_DATE )
AS CHARACTER ( 30 ))) || '/' || TRIM(BOTH ' ' FROM CAST ( EXTRACT( MONTH FROM CURRENT_DATE ) AS CHARACTER ( 30 ))) || '/' || TRIM(BOTH ' ' FROM
CAST (Core."Dim - Date"."Year" AS CHARACTER ( 30 ))) AS DATE )) ELSE 0 END
Here I have taken this part of the code from above code and started testing from answers
CAST ( TRIM(BOTH ' ' FROM CAST ( EXTRACT( DAY FROM CURRENT_DATE )
AS CHARACTER ( 30 ))) || '/' || TRIM(BOTH ' ' FROM CAST ( EXTRACT( MONTH FROM CURRENT_DATE ) AS CHARACTER ( 30 ))) || '/' || TRIM(BOTH ' ' FROM
CAST (Core."Dim - Date"."Year" AS CHARACTER ( 30 ))) AS DATE )) ELSE 0 END
what I could make out is when I was casting it to date I was getting the error
ORA-01830: date format picture ends before converting entire input string at OCI call OCIStmtExecute:
So When I have casted it to char and removed the year function from concatenation it worked out.
With the same idea I have used this part of the code in my main code above but here char was not working out, so I need to use date and there were no compilation
errors as it used to be before.
CASE WHEN Core."Dim - Date"."Year" = 'year(current_date)' THEN FILTER( AGO(Core."Fact - Spend and AP Invoice Distribution"."Spend YTD", Core."Date"."Year", 1)
USING Core."Dim - Date"."Date" = VALUEOF(NQ_SESSION."R_Current_Date")) WHEN Core."Dim - Date"."Year" <> 'year(current_date)' THEN FILTER( AGO(Core."Fact - Spend
and AP Invoice Distribution"."Spend YTD", Core."Date"."Year", 1) USING Core."Dim - Date"."Date" = CAST ( TRIM(BOTH ' ' FROM CAST ( EXTRACT( DAY FROM CURRENT_DATE )
AS CHARACTER ( 30 ))) || '/' || TRIM(BOTH ' ' FROM CAST ( EXTRACT( MONTH FROM CURRENT_DATE ) AS CHARACTER ( 30 ))) || '/' || TRIM(BOTH ' '
FROM CAST (Core."Dim - Date"."Year" AS CHARACTER ( 30 ))) AS DATE )) ELSE 0 END
Now when I check results in reports. I get the error ORA-01830: date format picture ends before converting entire input string at OCI call OCIStmtExecute
The problem here happening is
Core."Dim - Date"."Date" data type is DATETIME
and the concat string whole date type is DATE.
Its like datetime=date
Since becuase of this mismatch I assume I am getting this error.
So I thought of changing the data type of Core."Dim - Date"."Date" data type in rpd. Even though I checked out to do the changes I am unable to do though I login with
Admin account.
Secondly I thought of changing the concat string whole date type to DATETIME then I get the syntax error.
Any help on this would be much appreciated.
Thanks.
Edited by: 949675 on May 7, 2013 5:33 AM

Trying to find epoch dates and convert them to dates

I'm trying to find every epoch time in a string and convert them to a date. I have tried the below with no luck.
SELECT REGEXP_REPLACE('1315617396271 Impacting: CISCO SAN SWITCH1315617396271 Impacting: CISCO SAN SWITCH'
,'([[:digit:]]{10,10})',unixts_to_date('\1'))
FROM dual
Result
Error - ORA-01722: invalid number
I know the dates are good and the function works fine from the below test.
select unixts_to_date('1315617396') from dual
result
10 September 2011 01:16:36 AM
Any help with this would be much appreciated!

Hi,
I was not able to copy-and-paste your example due to unknown characters (which are displayed as squares on my Ubuntu laptop).
I modified them replacing those characters by spaces.
Maybe that won't totally fit your needs, or might behave differently on your system.
Anyway, I propose the following :Scott@my11g SQL>l
1 with t as (
2 select '1315617396 271 Impacting: CISCO SAN SWITCH 1315617396 271 Impacting: CISCO SAN SWITCH ' str from dual
3 union all select '1315417396 123 Impacting: CISCO SAN SWITCH 1315317396 123 Impacting: CISCO SAN SWITCH ' from dual
4 union all select 'I went to France from 1123456789 to 1234567890 and it was great !' from dual
5 )
6 ------ end of sample data ------
7 select
8      str
9      ,listagg(strdt) within group (order by n) newstr
10 from (
11      select
12           str
13           ,n
14           ,regexp_replace(sstr,'(.*?)\d*$','\1') || (to_date('1970101','yyyymmdd') + regexp_substr(sstr,'\d{10}',1)/3600/24) strdt
15      from (
16           select
17                str
18                ,n
19                ,regexp_substr(v.str,'.*?(\d{10}|$)',1,v.n) sstr
20           from (
21                select t.str,
22                m.column_value n
23                from t
24                ,table(cast(multiset(select level
25                               from dual
26                               connect by level <= regexp_count(t.str,'.*?\d{10}')+1) as sys.OdciNumberList)) m
27           ) v
28      )
29 )
30* group by str
Scott@my11g SQL>/
STR                                                NEWSTR
1315417396 123 Impacting: CISCO SAN SWITCH 1315 06 June      2012 05:43:16 PM 123 Impacting: CIS
317396 123 Impacting: CISCO SAN SWITCH           CO SAN SWITCH 05 June      2012 01:56:36 PM 123
                                                   Impacting: CISCO SAN SWITCH
1315617396 271 Impacting: CISCO SAN SWITCH 1315 09 June      2012 01:16:36 AM 271 Impacting: CIS
617396 271 Impacting: CISCO SAN SWITCH           CO SAN SWITCH 09 June      2012 01:16:36 AM 271
                                                   Impacting: CISCO SAN SWITCH
I went to France from 1123456789 to 1234567890 and I went to France from 07 May       2006 11:19:49 P
it was great !                                    M to 13 November 2009 11:31:30 PM and it was grea
                                                   t !

My manipulated images come out with a green color cast and poor quality

I manage my photos with ACDSee, but use Photoshop CS3 for much of my editing. The image leaves ACDSee with rich true colors, and while I'm editing in Photoshop the image looks like I want it. But when I save the image and view it in ACDSee, it now is faded, has a green color cast and looks faded, dull and shallow. What do you think is happening? Thanks. Rickrans

One other place to look.... If you shoot raw images, there's a separate configuration for the color space the Camera Raw converter delivers its results in. Click the little link at the bottom-center of the Camera Raw dialog. If you want to work in the sRGB color space, change it as shown here:
-Noel

TRY CAST and setting the type according to destination column

Hi,
I am loading data from different sources. I have to do data quality checks for data I am loading into destination. For Decimal Values I have destination data types Decimal(28,2) and Decimal(28,6)
I would like to check the source data and covert the type according to destination column. How can I use the try cast in this scenario?
SELECT TRY_CAST(REPLACE('100,500.000',',','') AS DECIMAL(28,2))
this statement will convert every thing to two decimal places. but if destination column is decimal(28,6) i would like to convert it to 100500.657899
What is the best way of doing it?
MH

Hi MH,
According to your description, you need to CAST and setting the type according to destination column which data types is Decimal(28,2) and Decimal(28,6), right?
"this statement will convert every thing to two decimal places. but if destination column is decimal(28,6) i would like to convert it to 100500.657899" If in this case, then there are different data types on the same column which is not
supported in current version. So as per my understanding, there is no such a functionality to achieve your requirement. What we can do is convert to corresponding datatype (Decimal(28,2) or Decimal(28,6)), and then convert it to nvarchar datatype.
CREATE TABLE #TEMP(A NVARCHAR(50))
INSERT INTO #TEMP VALUES('1538.21'),('1635.326541'),('136.235')
SELECT
A,
CASE
WHEN (LEN(RIGHT(A,LEN(A)-PATINDEX('%.%',A))))>2
THEN
CAST(A AS DECIMAL(28,6))
WHEN (LEN(RIGHT(A,LEN(A)-PATINDEX('%.%',A))))<=2
THEN
CAST(A AS DECIMAL(28,2))
END AS B,
CASE
WHEN (LEN(RIGHT(A,LEN(A)-PATINDEX('%.%',A))))>2
THEN
CAST(CAST(A AS DECIMAL(28,6)) AS VARCHAR(99))
WHEN (LEN(RIGHT(A,LEN(A)-PATINDEX('%.%',A))))<=2
THEN
CAST(CAST(A AS DECIMAL(28,2)) AS VARCHAR(99) )
END AS B2
FROM #TEMP
DROP TABLE #TEMP
Regards,
Charlie Liao
If you have any feedback on our support, please click
here.
Charlie Liao
TechNet Community Support

Rounding Differences between TSQL Cast and Data Conversion component

This is using SSIS 2012. We are using an Ole Db Connection manager using the Microsoft.ACE.OLEDB.12.0 provider.
I have an Access database (accdb). It has several columns that are coming into SSIS as real data types. One column has a value of 68.8335558900872.
In the past we used the Data Conversion to convert from real to numeric 18, 6. The result was 68.833555. Rather than rounding on the last decimal place, it is returning the floor at six decimal places.
We have converted the process to load the data into a real data type column and then use a view to cast the value to a Decimal 18,6 (CAST (Col1 as Decimal(18,6))). We then load the data into a decimal 18,6 column. The result is 68.833556, which
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Personally I prefer the rounded version rather than the truncated version.
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Russel Loski, MCT, MCSE Data Platform/Business Intelligence. Twitter: @sqlmovers; blog: www.sqlmovers.com

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Francine
Francine
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Hello,
Try the following FM:
CONVERT_OTF Convert SAP documents (SAPScript) to other types.
Example:
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EXPORTING FORMAT = "PDF"
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EXCEPTIONS ERR_MAX_LINEWIDTH = 1
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OTHERS = 4.
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Reward if helpful.
Regards,
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Cast and convert

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