Transact SQL :: Casting To Same DataType
Jun 10, 2015
Biz talk server executes every query twice, first with FMT only to get metadata.If metadata changed, it will produce error.Now, i have query like:
SELECT col1, col2, col3 INTO #tmp FROM dbo.myTable
How SQL decide the type of column in #tmp? Does it create column of the same type as it is in dbo.myTable or its decision is based on result?For example, col1 is varchar(20), but col1 in #tmp will be varchar(200) or even nVarChar.Col2 is INT, but result is for example low number(like, 1,2,3,) - is it possible that col2 in #temp table will be smallint or tinyint even if col2 in myTable is INT.If that is true one way to overcome that will be to explicitly CAST all columns to proper data type. Is there any performance impact of casting: CAST(col1 as VARCHAR(20)) if col1 is already varchar(20) in dbo.myTable?
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Apr 21, 2006
Here is my expression in a derived component:
"Failed insert into PONL_WELL. WELL_NO=" + (DT_WSTR,10)PROP_NO
PROP_NO comes from ms sql server , and the derived component datatype for this column is DT_WSTR.
The destination will be ms sql server, and i have a data conversion after the derived component to cast from DT_WSTR to DT_STR.
However, the derived component failed everytime giving me
Error: 0xC0049064 at Load Ponl_Well, Derived Column [1342]: An error occurred while attempting to perform a type cast.
Anyone know how i can eliminate the data conversion component and just do my string and column concatenation in the derived column and have it output as DT_STR?
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Sep 8, 2007
A SQL Server 2005 db has three date related-columns (MonthGiven,
DayGiven, YearGiven) each as smallint datatype. I would like to
create a DocDate column (datetime datatype) that combines the data from
the three existing date-related columns. I have tried casting and
simple concatentation without success. ALTER TABLE Details ADD DocDate DateTime NULL
UPDATE Details SET DocDate = CAST(MonthGiven AS DateTime)+ '/' + CAST(DayGiven AS DateTime) + "/" Cast(YearGiven As DateTime)
I think I need to be doing a Conversion instead of casting but
have been unable to implement info I have found in the SQL Server
Developer Center in my situation.
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Apr 28, 2004
I realize that the CASE statement doesn't like different datatypes as return values but if I want to format the "0" in the second WHEN condition below to "000", how do I do that? I have a "Region" that is "000" and would like it to show up that way at the very top of my report. I have the GROUP BY and ORDER BY to work fine, it just shows up as "0" and I can't change it. I realize it is being read as an int but am having trouble with the CAST and where to place it. Thanks again, you guys are great.
ddave
SELECT Region =
CASE WHEN branch_num IN(48,53,78,173,186,198,208,212,257,286,287,317,35 3,398,440,
478,571,572,610,1069) THEN 44
WHEN branch_num IN(484,532,841,864,7001,7101,7102,7103,7104,9031) THEN 0
ELSE 999
END
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Aug 10, 2007
Hello,
I have a varchar column that inludes dates in the following fomat: 03032007? When I try to cast this to datetime, I keep getting "Arithmetic overflow error converting expression to data type datetime." error. Maybe someone has some ideas how to handle this?
Thanks!
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Sep 24, 2015
Is there any way to convert a bind variable, which is a list of integer or string values, to nested table in MS SQL Server. I am looking for something like
CAST in Oracle, which converts a varray type column into a nested table. Do we have something like this in SQL Server.
in Oracle:
SELECT CAST(s.addresses AS address_book_t)
FROM states s
WHERE s.state_id = 111;
I have read about Table valued Parameter, but I am looking for another solution.
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Dec 18, 2008
if I 'print' a MONEY value, or cast a MONEY variable to VARCHAR, it automatically rounds it to two decimal places. Maybe that's a built-in convenience, but I'd like to make it not do that.My workaround right now is to first cast my MONEY variabled to DECIMAL(30,4), and then cast the result to VARCHAR, but I'd like to avoid that step if possible.Consider the following
query:DECLARE @UnitCost MONEY SET @UnitCost = .0167 SELECT @UnitCost,
CAST(@UnitCost AS VARCHAR(30)),
CAST(CAST(@UnitCost AS DECIMAL(30, 4)) AS VARCHAR(30)) -
- Results in: 0.0167, 0.02, 0.0167
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Sep 9, 2015
I am trying to pull the records which are being affected i.e, comparing the values and if not same then populating the record.
I am using the below condition in where clause however i am getting runt time error as "Conversion failure when converting date and/or time from character string"
Condition in Where clause:
cast(isNull(tab1.Col1,'') as datetime) <> cast(isNull(tab2.col1,'') as datetime)
Note: Both col1 columns are of type nvarchar
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Jul 23, 2005
Does anybody know how could I calculate the new date(adding @c to @bor subtracting @b to @c), having for example a declaration like this:DECLARE @a CHAR(12)DECLARE @b DATETIMEDECLARE @c INTSET @b='3.04.04';SET @c=6and to calculate the number of days between two dates with this kindof declaration(@a-@b or @b - @a):DECLARE @a CHAR(12)DECLARE @b DATETIMEDECLARE @c INTSET @a='12.2.04';SET @b='3.04.04';Thanks in advance.
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May 29, 2015
I am using SQL server 2008 .I have a table which has 1.5 crore records and some of my columns are Char datatype.Because of this i have spaces in my columns.Now I want to convert char to varchar datatype .But i have index on those columns .
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May 20, 2015
I have a field in a table
FormID nvarchar(6)
i want to change the length of the datatype to nvarchar(8).
what is the best way to do with out dropping the table?
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Jun 23, 2015
I have column which has timestamp datatype.in this column inserting date in encrypt format.
I want insert date format into that column.If it is not possible to insert date format while fetching (through select statement) want to decrypt format ( I mean date format).
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Apr 21, 2015
In the below scenario we are inserting some time related fields in Temp table.But its data type is varchar. Once data loading is finished in the temp table (Data is loading by source team SQOOP and they are unable to load if the source datatype is having Date or datetime) we have to alter the column datatypes. somehow, some character data in inserted in date columns (look at into 3rd insert statement). while altering the table it is failing. Can we do any alternative for this (Means if any varchar data that is non convertible to date can we make as null)
INSERT INTO ##TEMP_TEST
SELECT '2014-09-30','2017-10-06','Nov 6 2014 6:11AM','Nov 6 2014 6:11AM'
UNION SELECT '2014-09-29','2017-10-06','Nov 6 2014 6:11AM','Nov 6 2014 6:11AM'
UNION SELECT '2014-09-28','2017-10-06','Nov 6 2014 6:11AM','Nov 6 2014 6:11AM'
GO
INSERT INTO ##TEMP_TEST SELECT NULL,NULL,NULL,NULL
[Code] ....
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Jan 28, 2015
Need to know if the varchar datatype field will ingore leading zeros when compared with numeric datatype ?
create table #temp
(
code varchar(4) null,
id int not null
)
insert into #temp
[Code] .....
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Apr 24, 2008
Good afternoon,
I have an issue with an ssis variable datatype.
The scenario is as follows:
I have a stored procedure:
PROCEDURE [dbo].[sp_newTransaction]
@sourceSystem varchar(50),
@txOut NUMERIC(18,0) OUTPUT
AS
insert into scn_transaction (sourceSystemName) values(@sourceSystem);
SELECT @txOut = @@identity
Whose purpose is to perform an insert into a table and return me the identity value of the inserted record, which I'll then use throughout the rest of my package. The identity column in the inserted table is numeric(18,0).
I execute the stored proc with the following sql with an OLE DB connection manager:
exec sp_newTransaction ?, ?
The first parameter is a string variable from earlier in the package, and the second is the output parameter. I have the following parameter mappings to the execute sql task:
User:ystxId output numeric 1 -1
User:ourceSys input varchar 0 -1
The proc is correctly called, and the row insesrted, however I get a type conversion error when SSIS attempts to map the return parameter to my package variable... I've tried all sorts of combonations, and can't seem to get it to execute.
At one point I wasn't returning a numeric, but rather an int from the stored proc, and all was well until I went to use the variable in a derived column later in the package, and the type was converted quite incorrectly (a 1 was 77799789080 or some such), indicating a type conversion error likely related to the encoding of the number.
I'd like to keep the datatypes as numeric and make ssis use those - any pointers are greatly appreciated as to what type my package variable should be to allow proper assignment of a sql server numeric type to it.
Thanks much,
B
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Sep 17, 2003
Database is SQL Server 2000
I have a field in a table that stores date of birth. The field's datatype is char(6) and looks like this: 091703 (mmddyy). I want to convert this value to a datetime datatype.
What is the syntax to convert char(6) to datetime?
Thank you in advance.
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Mar 14, 2008
Hi,
I imported a table from Accees to SQL 7 with data in it.
I need to modify one of the datatype columns to "datetime" from nvarchar.
I tried to convert it manually, in SQL Server Enterprise Manager tool, but it gave me an error.
I also tried, creating another column "DATE2-datatype:datetime" and updating the column with the old one.
UPDATE users SET DATE2 = DATE.. But it also faild,..
How can I modify the column?
Thank you.
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Aug 25, 2004
Can someone please help me with this? I'm losing all my hair trying to figure it out. I've tried all that I can think of. I am getting the Error converting data type varchar to numeric.
Thanks
Sam "O"
cmdInsert = New SqlCommand( "INSERT INTO tmp_blank (sessionid, ssn,job,sun,mon,tue,wed,thu,fri,sat,totcol)
SELECT '" & Session.SessionId & "', ssn,job,sun,mon,tue,wed,thu,fri,sat,
(cast(sun as numeric(4,2)) + cast(mon as numeric(4,2)) +
cast(tue as numeric(4,2)) + cast(wed as numeric(4,2)) +
cast(thu as numeric(4,2)) + cast(fri as numeric(4,2)) +
cast(sat as numeric(4,2))) as totcol from
" & strTableName, conTimeCard)
intUpdateCount = cmdInsert.ExecuteNonQuery()
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Jul 3, 2007
Hello,
I'm new to SQL Server and I have to finish a VB.Net program from an employee that has left the company.
I have a table with column 'vanafdatum' witch has datatype char but they stored only dates in this column ( like this: 13/09/2006).
When I try to run the next querie I receive an error message "The conversion of a char data type to a datetime data type resulted in an out of range datetime value".
This is the querie I try to run
SELECT MAX(CAST(vanafdatum AS datetime)) AS vanaf_datum
FROM tarieven
WHERE (vanafdatum <
(SELECT getdate()))
Is there any way I can cast the char datatype to a datetime datatype without getting this error.
I allready tried to change the data type from char to datetime, but doesn't work either.
A possible solution is to erase the column an manually fill in all the fields again in the data type datetime, but that seems a little stupid to do.
So I wonder if there is a solution that can change the data type for all rows in the database without losing any data.
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Aug 30, 2006
I've got an ftp task that will be downloading a couple of files each night. today they're called
blah20060830blah
the date value in the middle changes each day. I'm trying to adjust this value with an expression. The expression doesn't want to cast my getdate function into a string that this property will accept. I know i'm missing something stupid.
Thank you
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Feb 6, 2007
Hi,
I would like to know if casting is supported in SQL Server Compact Edition. I get an error when i attempt to cast a datetime or bigint value to nvarchar or ntext. CAST(datetime AS nvarchar(15))
Does anybody knows if its supported or how could i cast values?
Thank you
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Oct 10, 2005
Hi,I've come across a problem that requires i cast a string to a date, had a go but can't get it to work properly.SELECT EventID, EventName, EventShortDesc, EventLink, EventStartDateFROM dbo.tbl_EventWHERE (CAST EventStartDate AS DATE) > GetDate()ORDER BY EventStartDate DESCBasically i only want events which haven't expired (were before the current date) to be returned. EventStartDate is held as an varchar(10) therefore needs to be cast before i can compare. Is this the best way or is there a better one? If it is how do i get it to work?Any help would be great thanks,drazic19
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Feb 18, 2008
Hi All
My brain has truned to mush at the moment.
:(
I want to sort on a char(5) column with data in it that looks like
01/07
05/02
06/01
12/01
07/98
so it comes out in the human date order.
e.g
07/98
06/01
12/01
05/02
01/07
--
David
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Nov 13, 2007
Hi all,
I'm trying Insert data using INSERT INTO kind of like below
INSERT INTO table1(
col1
col2
col3
col4)
SELECT
col1
col2
col3
col4
FROM
Server.DB.table2
say, col3 from table 1 is numeric (28,8) and col3 from table 2 is float.
how do I cast this so it works??
thank you!
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Apr 6, 2006
Just a question about multi casting.
If I create a copy of a data set using a multi cast, do operations on one of the output sets effect the other output set?
For example, in one ouput set I'm setting a column to NULL - this is actually updating the other set as well. Is this meant to happen?
Thanks!!
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Jun 18, 2007
Can anyone see what's wrong with this transformation?
((DT_STR)([IN-DLN]))
I'm trying to cast DLN as a string, but I keep getting a parsing error in the derived column tranformer...
Thanks!
Jim Work
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May 12, 2006
Hello,
When I declare a VB variable Dim s as Decimal,
I want to cast d like this : 1452,4141,0045,47756544,04
Only with to digits after the ","
How can I perform this
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Feb 25, 2005
Can anyone please telkl me what is wrong with this portion of a SQL statement. I have been racking my brain over this and can't seem to get it right...
(CASE playerstats.fgm WHEN 0 THEN 0 ELSE (cast(100.00 * ((cast(SUM(playerstats.fgm)) as Decimal(8,2))/(cast(SUM(playerstats.fga)) as Decimal(8,2)))) as decimal(8,1))) AS fgp
I had it working fine, but when playerstats.fgm was a 0 then I got a divide by 0 error. This was the code when it was working ok as long as no one entered a 0 for fgm
(cast(100.00 * (cast(SUM(playerstats.fgm) as Decimal(8,2))/cast(SUM(playerstats.fga) as Decimal(8,2))) as decimal(8,1))) AS fgp
All I am trying to do is find a percentage... when playerstats.fgm = 0 then the percentage will be 0.
Any help will be much appreciated!!! :confused:
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Sep 28, 2006
If I have an SQL query which returns an aggregate of several decimal fieldslike so:(sum(COALESCE(myDecimal1, 0)+sum(COALESCE(myDecimal2, 0)+sum(COALESCE(myDecimal3, 0)) as MyTotalI get an rounded integer in MyTotal.However, if I do the following:sum(COALESCE(myDecimal1, 0)+COALESCE(myDecimal1, 0)+COALESCE(myDecimal1, 0)) as MyTotalI get a (proper) decimal value.Does anyone know why the first case returns an Integer?- Don
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Jan 7, 2008
I am trying to Convert integer into float value by using
CAST(value AS float).
But seems it doesn't work. I also used
CONVERT(float, value)
but it is alos not working properly.
Any Idea?
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Sep 6, 2006
I am selecting older legacy data from an AS400 mainframe that we still use. I am fairly new to constructing T-SQL statements so I hope I am doing this correctly. There is a table from the AS400 that has been setup with a field for TMONTH, TDAY, and TYEAR. Instead of having one field for a date, for some reason years ago this was set up this way.
I now have this statement in my SELECT statement and it is not working:
WHERE (CAST(OWNR.TMONTH + '/' + OWNR.TDAY + '/' + OWNR.TYEAR AS DATETIME) >= @startdate)
I am not getting a syntax error, however I am getting "Error Converting data type varchar to numeric. These fields on the AS400 are set up as numeric fields.
What do I need to do differently? Should I use a CONVERT instead and if so, how would I structure that statement.
Thanks for the help
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Oct 10, 2006
Is there a way do disable/disallow implicit casting in Sql Server 2000?
Say for example:
if ' ' = 0 select getdate()
This wil print out the current date and time.
But ' ' (a string, varchar, whatever) is not the same type as 0 (say, int). Implicit casting is nice, but is there also an off switch?
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Jun 29, 2007
Hi all,
I am running into a problem which seems to indicate SQL Server 2005 is pretty aggressive with its implicit conversion which makes UNPIVOT apparently unusable for my current task of creating attribute/value pairs of strings for each of the records unpivoted around the primary key.
WITH cte as
(
SELECT 1 as Code, '2' as Status, 'Some Guy' as CreatedBy, Convert(varchar(19), getdate(), 120) as CreatedDate
)
SELECT
[Code]
,[Attribute]
,[Value]
FROM
cte
UNPIVOT([Attribute] FOR [Value] IN ([Status],[CreatedBy],[CreatedDate])) as U;
Msg 8167, Level 16, State 1, Line 1
The type of column "CreatedBy" conflicts with the type of other columns specified in the UNPIVOT list.
The same result shows up if I use an inner SELECT instead of the CTE:
SELECT
[Code]
,[Attribute]
,[Value]
FROM
(
SELECT 1 as Code, '2' as Status, 'Some Guy' as CreatedBy, Convert(varchar(19), getdate(), 120) as CreatedDate
) cte
UNPIVOT([Attribute] FOR [Value] IN ([Status],[CreatedBy],[CreatedDate])) as U;
It seems to me that some arbitrary decision about what column is processed first is made and the process fails as soon as a column is met which is not of the same datatype. I also think it is interesting that the engine will implicitly cast from varchar to DateTime but not the other way around.
Any thoughts on how I can get around this?
Thanks in advance,
Calvin
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