Convert varchar in db to boolean

The dba's have modelled a field as a varchar(1), with valid values being 'Y' and 'N'.
Can i map this as boolean within the Java class?
thanks,
craig

Yes, you would use the object-type-mapping in TopLink for this. This can be done in the Mapping Workbench, or through the code API.
i.e.
ObjectTypeMapping mapping = new ObjectTypeMapping();
mapping.setAttributeName("isSomething");
mapping.setFieldName("SOMETHING");
mapping.addConversionValue("Y", new Boolean(true));
mapping.addConversionValue("N", new Boolean(false));
descriptor.addMapping(mapping);

Similar Messages

How to convert varchar to date datatype while insert or update in table

Hai All
I need to convert to varchar to date.
I have two Tables T1,T2
T1 Structure
Code varchar
Time varchar
Date varchar
T2 Structure
Empname var
Empcode var
Intime date
Outtime date
Intrin date
Introut date
Att_date
Now i need to move Time form T1 to T2 Intime,outtime,intrin,introut according some condition
So now i need to convert Varchar to Date while insert or update
I have tried something
Insert into T1 (code,intime,att_date)values
(code,To_date(Date||time,'dd-mon-yyyy hh24mi'),att_date);
OR While update
Update T2 set Outtime=To_date(Date||time,'dd-mon-yyyy hh24mi') where...
I got an error Ora-01861
Regards
Srikkanth.M

You didn't show any example of your date or time values, butyou might need to add a space between them, like
To_date(Date || ' ' || time,'dd-mon-yyyy hh24mi')

Convert varchar(20) date to date that looks like mm/dd/yyyy

Good afternoon,
I am a total novice at SQL and have been tasked to change a varchar(20) date column (shows up as m/dd/yy) to show up as mm/dd/yyyy. I've looked at the previous posts, but being a novice, it's difficult to wade through the non-applicable stuff. The column
that needs to be changed is field2, but I'm not sure how to construct a statement to reflect my objective.
Thank you in advance.

The sample uses a table variable. You can program it the same way for a table:
DECLARE @t TABLE (dt VARCHAR(20))
INSERT INTO @t
VALUES ('1/2/12')
,('3/10/10')
,('7/23/9')
,('aa')
,('12/31/99')
,('10/20/00')
,('10/20/01')
SET DATEFORMAT mdy
SELECT dt
,CONVERT(VARCHAR(10), CASE
WHEN isdate(dt) = 0
THEN NULL
ELSE cast(dt AS DATE)
END, 101) AS newDt
FROM @t;/******** TRY_CONVERT() method ************/
SELECT dt, newDt=CONVERT(varchar(10),TRY_CONVERT(date,dt),101) FROM @t;
GO
dt newDt
1/2/12 01/02/2012
3/10/10 03/10/2010
7/23/9 07/23/2009
aa NULL
12/31/99 12/31/1999
10/20/00 10/20/2000
10/20/01 10/20/2001
dt newDt
1/2/12 01/02/2012
3/10/10 03/10/2010
7/23/9 07/23/2009
aa NULL
12/31/99 12/31/1999
10/20/00 10/20/2000
10/20/01 10/20/2001
Starting with SQL Server 2012 you can use TRY_CONVERT().
You can start studying datetime functions here:
http://www.sqlusa.com/bestpractices/datetimeconversion/
Kalman Toth Database & OLAP Architect
T-SQL Scripts at sqlusa.com
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

Convert varchar(255) to varchar(50)

I want to transfer data from a staging table to another table. The staging table has columns with datatypes I don't always want, and I'm converting them like so:
INSERT INTO [dbo].[my_table]
SELECT CONVERT(datetime,TimeIndex,103),
CONVERT(decimal(6,3),Network_In,3),
CONVERT(decimal(6,3),Network_Out,3),
CONVERT(decimal(6,3),Network_Total,3)
FROM [dbo].[staging_table]
How would I convert varchar(255) to varchar(50)?
Thanks in advance
Adam

Using substring is returning the column so thanks but now I can't convert datetime for some reason:
INSERT INTO [dbo].[mytable]
SELECT SUBSTRING(ClusterName,1,50) AS 'ClusterName',
CONVERT(datetime,TimeIndex,103),
ClusterID,
CONVERT(decimal(3,2),Memory,3),
CONVERT(decimal(3,2),CPU,3),
CONVERT(int,CPUTotal),
CONVERT(int,MemoryTotal)
FROM [dbo].[stagingtable]
GO
Now I get an error I didn't get before:
Implicit conversion from data type datetime to decimal is not allowed. Use the CONVERT function to run this query.
But if I run the datetime convert on it's own as a single column select then it works okay. Any ideas where I've gone wrong there?
To sum up - the above fails but the below works:
SELECT CONVERT(datetime,TimeIndex,103) AS 'TimeIndex'
FROM [dbo].[stagingtable]
Thanks
Adam

Replace and convert varchar to decimal

Hi all
What could be the easiest way to replace and convert varchar(50) to decimal
My string '21 807,00' Need to have it in db as 21807.00
Thanks
AKE

On any version you can use somple convert with replace:
declare @MyStr varchar(10) = '21 807,00'
SELECT CONVERT(decimal(10,2), REPLACE(REPLACE(@MyStr, ',','.'),' ',''))
but if there is a different format and the convert will not work, then you will get error. Therefore it is best (as mentioned) to use TRY_CONVERT on newer server or use Try block on old servers
[Personal Site] [Blog] [Facebook]

Converting varchar to datetime 103

Hi Guys
Im making a select query where in a colomn the date is yyyy-mm-dd, i need dd-mm-yyyy (103). A simple convert query does not work because the colomn is not set as a datetime but as a varchar. Its not possible to change the tables at the source.
The colomn name is DATE_IN
I think the following post could be helpfull but i dont know how to fix the given statements into the select query
http://stackoverflow.com/questions/1509977/convert-varchar-into-datetime-in-sql-server

> in a colomn the date is yyyy-mm-dd, i need dd-mm-yyyy (103)
As suggested above, this is string date format to string date format conversion, purely string operations.
If you convert to DATE / DATETIME first (universal internal binary representation), then it may fail if invalid date.
You can use the ISDATE or TRY_CONVERT functions to check if the string date is valid.
DATETIME functions:
http://www.sqlusa.com/bestpractices/datetimeconversion/
Kalman Toth Database & OLAP Architect
SQL Server 2014 Design & Programming
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

How to convert varchar to int in MSSQL?

Hi,
I am using mssql. how can i convert varchar to int type.
for eg.
id (int) txt(varchar)
1 ---------10
2 ---------10a
3 ---------10b
i want to convert varchar to int. HOw? pls explain with query.
Thanks
edward

"10a" wouldn't normally be considered a number. So what sort of number do you expect it to be?
Other than that you can look at the substring and convert/cast functions.

Convert Varchar to Time

I need my code to add the varchar CPUTM field + varchar CPUZIPTIM field which both has time values to see if greater than 2 hours. How do I do this when both fields are varchar. The value in CPUTM field is
335:55:20.97 duration time. My code is below.
CPUTM = 335:55:20.97 duration time
CPUZIPTM = 0:00:01.96
duration time
select * FROM [SMF_DATA].[dbo].[System_Management_Facility]
WHERE ((convert(varchar(13), CONVERT(time, CPUTM) + CONVERT(time, CPUZIPTM))) > '02:00:00.00')

Well, there is no time span in T-SQL, so you need either to store it in the smallest necessary unit (seconds, milliseconds) or to convert ít on the fly.
E.g.
DECLARE @CPUTM VARCHAR(255) = '335:55:20.97';
DECLARE @CPUZIPTM VARCHAR(255) = '00:00:01.96';
DECLARE @T BIGINT = PARSENAME(REPLACE(@CPUTM, ':', '.'), 1) +
PARSENAME(REPLACE(@CPUTM, ':', '.'), 2) * 100 +
PARSENAME(REPLACE(@CPUTM, ':', '.'), 3) * 6000 +
PARSENAME(REPLACE(@CPUTM, ':', '.'), 4) * 360000 +
PARSENAME(REPLACE(@CPUZIPTM, ':', '.'), 1) +
PARSENAME(REPLACE(@CPUZIPTM, ':', '.'), 2) * 100 +
PARSENAME(REPLACE(@CPUZIPTM, ':', '.'), 3) * 6000 +
PARSENAME(REPLACE(@CPUZIPTM, ':', '.'), 4) * 360000;
SELECT @T / 360000,
(@T % 360000) / 6000,
(@T % 6000) / 100,
(@T % 100);

Convert varchar to decimal - arithmetic overflow

I'm using SQL Server 2014 and I'm trying to convert data from a staging table over to a production table. I seem to be getting an Arithmetic overflow error converting varchar to numeric on the decimal conversion. I'm sure I've overlooked something with the
syntax of the CONVERT.
This is the staging table:
CREATE TABLE [dbo].[staging_table](
[TimeIndex] [varchar](100) NULL,
[Cluster] [varchar](100) NULL,
[AvgMem] [varchar](100) NULL,
[AvgCPU] [varchar](100) NULL,
[TotalMemory] [varchar](100) NULL,
[TotalCPU] [varchar](100) NULL,
[Datacenter] [varchar](100) NULL,
[vCenter] [varchar](100) NULL
) ON [PRIMARY]
This is the prod table I'm moving it to:
CREATE TABLE [dbo].[Clusters](
[ClusterID] [int] IDENTITY(1,1) NOT NULL,
[ClusterName] [varchar](25) NULL,
[DatacenterName] [varchar](25) NULL,
[TimeIndex] [datetime] NULL,
[AvgCPU] [decimal](5, 2) NULL,
[AvgMem] [decimal](5, 2) NULL,
[TotalCPU] [decimal](8, 2) NULL,
[TotalMem] [decimal](8, 2) NULL,
[vCenterID] [int] NULL,
CONSTRAINT [PK_Clusters_1] PRIMARY KEY CLUSTERED
[ClusterID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
and here's an example INSERT INTO statement throwing the error:
INSERT INTO [dbo].[Clusters] (ClusterName,DatacenterName,TimeIndex,AvgCPU,AvgMem,TotalCPU,TotalMem,vCenterID)
SELECT SUBSTRING(Cluster,1,25) AS ClusterName,
SUBSTRING(Datacenter,1,25) AS DatacenterName,
CONVERT(datetime,TimeIndex,103) AS TimeIndex,
CONVERT(decimal(5,2),AvgCPU) AS AvgCPU,
CONVERT(decimal(5,2),AvgMem) AS AvgMem,
CONVERT(decimal(8,2),TotalCPU) AS TotalCPU,
CONVERT(decimal(8,2),TotalMemory) AS TotalMem,
'3' FROM [dbo].[staging_table]
Sample data is 0.00 to 100.00 in fields AvgCPU and AvgMem, and TotalCPU and TotalMem usually goes up to about 7 digits with no decimal (eg. 7543253) but could be 8 and although I've never seen a decimal I wouldn't rule it out so decided to account for it.
I assume it's something I've overlooked with the syntax but any ideas would help.
Thanks
Adam

The problem is your precision and scale you are assigning to your decimals.
decimal(5,2) = this is a total of 5 digits, 3 digits for the whole number and 2 for the fractional.
decimal(8,2) = this is a total of 8 digits, 6 digits for the whole number and 2 for the fractional.
So converting a varchar of 7 or 8 digits for TotalCPU or TotalMem will give you an error because your definition will actually only allow for 6 digits of storage. You could test this by doing decimal(8,0) or decimal(10,2) both which will allow for up to
8 whole numbers.
If you are worried about space Sql Server will allocate a set number of bytes for ranges based on the precision (first number in the parenthesis). See this page which explains in detail how much space each range takes up and also further details on
decimal and numerics.
-Igor

Convert Varchar to Date

Hi
im trying to convert varchar to date.
So, i used To_date ( cilumn, 'DD-MM-YYYY') , Since i have to order the out put in Decending Order i used the same convertion function with Order by clause.
The problem is ... the out put is not ordered,
<sql>
select date_created
from
select distinct
to_date(created_date,'DD-MM-YYYY') as date_created
from schedule_backup
order by date_created desc
<sql>
out put is
=================
DATE_CREA
26-NOV-09
23-NOV-09
19-NOV-09
16-NOV-09
11-NOV-09
04-NOV-09
30-OCT-09
11-SEP-09
04-MAR-10
01-MAR-10
25-FEB-10
DATE_CREA
22-FEB-10
17-FEB-10
15-FEB-10
11-FEB-10
09-FEB-10
03-FEB-10
27-JAN-10
20-JAN-10
15-JAN-10
04-JAN-10
thanks
raj

Hi, Raj,
When you store dates in a VARCHAR2 column, you're asking for touble, so it seems that everything is working according to plan.
Even aside from that, your query works perfectly for me.
In the output you posted, the order is correct within each year, and you're only showing 2 digits of the year. Are you sure the centuries are right in the schedule_backup table? Perhaps everything that was supposed to be '2010' got enetereed as '1910' or '0010'.
Post some sample data (CREATE TABLE and INSERT statements) that gets the wrong results with your query.
For example:
CREATE TABLE schedule_backup
( created_date VARCHAR2 (10)
INSERT INTO schedule_backup (created_date) VALUES ('11-11-2009');
INSERT INTO schedule_backup (created_date) VALUES ('04-11-2009');
INSERT INTO schedule_backup (created_date) VALUES ('30-10-2009');
INSERT INTO schedule_backup (created_date) VALUES ('11-09-2009');
INSERT INTO schedule_backup (created_date) VALUES ('04-03-2010');
COMMIT;

Convert VARCHAR to date - don't know format in advance

Hi,
If I want to convert varchar to date, but I don't kniow the format of the varchar in advance. For example, it may be '20-MAY-99', '2009-01-10 10:01:00', but it is not known in advance. How can I convert it to date?
Many thanks

You'll have to define a hierarchy of date formats to try. There are some strings that map to many different valid dates depending on the format. The string '01/02/03' might translate to January 2, 2003, January 2, 1903, February 1, 2003, February 1, 1903, February 3, 2001, February 3, 1901, etc.
Assuming you define a hierarchy of formats, you can write a function that tries each format in turn, i.e.
CREATE FUNCTION my_to_date( p_string IN VARCHAR2 )
RETURN DATE
IS
l_date_variable DATE;
BEGIN
l_date_variable := to_date( p_string, <<format 1>> );
return l_date_variable;
EXCEPTION
WHEN OTHERS THEN
    BEGIN
      l_date_variable := to_date( p_string, <<format 2>> );
      return l_date_variable;
    EXCEPTION
      WHEN OTHERS THEN
END;You'll need to define the N date formats to try and the order in which to try them.
Justin

Convert varchar to date in OBIEE-sql server database

Hi we have SQL server database,
and we need to convert varchar to to_date .
In OBIEE we use evaluate,cast etc on Oracle......Not sure about sql server..please help

i am usiing below formula in my reports-answer side:
Cast((case when "Job CV Fact"."Total Cv Sent" is not null then "DATE DIM".Date end)as Date)
below error is coming:
A general error has occurred. [nQSError: 46046] Datetime value 01/01/08 does not match the specified format. (HY000)
cast("DATE DIM".Date as date) the above error comes :)

In OBIEE rpd convert varchar to datetime

Hello,
Can anyone help one how can we convert a column that is set to varchar to datetime in obiee;
Suppose COLUMN_A is varchar and keeps value like '2008-12-30 10:11:22'
and we want to convert it DATETIME.
Thanks and Regards

use cast(column as TIMESTAMP)

Crystal reports converting varchar 254 to memo data type

Hi All,
We are still using Seagate Crystal Reports 7.5 for some of our reporting. I have a problem that hopefully someone can help with. One of our connections is to ODBC- AR System ODBC Data Source.
In that data source there are fields defined as varchar 254 (confirmed by DBA),
But Seagate is calling them memo fields- which is causing problems since you canu2019t use memos in selection criteria or formulas.
This happened after the field names were renamed. I noticed when the newly named fields were not showing as an option to map the old name fields to- because by default it looks for same data type, after unchecking same data type option the fields showed for mapping but wrong data type makes them useless. I canu2019t even convert them to string with formula field.
Any input would be greatly appreciated.
Thanks-

Hi,
Yup, this was a problem with versions prior to 10. If a field was longer than 254 characters, Crystal handled them like Memos and you cannot use them in formulas.
The only suggestion I can offer would be to upgrade. Crystal can now use memos in formulas and no longer has a 254 character limit on strings. So your charcter fields will remain as charater and not changed to Memos.
Good luck,
Brian

Converting Varchar into Clob in Oracle 8i

Hi All,
Kindly tell me how can we convert a varchar variable into a Clob in Oracle 8i inside a stored procedure. I searched alot on the net, we have a To_Clob function available from 9i but doesn't exist in 8i. There was also talk about using dbms_lob, but i dont know how to use that to convert it.
Kindly provide me with the details of how to do this as I am just starting out with Oracle.
Thanks in Advance,
Sajid.

Hi,
You can use the dbms_lob.to_clob() function(In oracle8i).
In oracle 9i it is not required.
Thanks & Regards
venkata

Convert varchar in db to boolean

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