I wrote a basic update query:
Update WA SET WA.Time_Updated = Replace(Time_Updated, 'PM', ' ');
to which I don't get any real error message other than
Microsoft can't update 251 records etc due to type conversion error
There are 5000 records in there. I have the date column as Date/Time and all my other columns (non-dates) as Short Text. The query just does not update anything in the table and keeps it previously was. Any ideas?
Just convert your text times to Date values:
Select *, TimeValue([Time_Updated]) As TimeUpdated From WA
Then, when you display TimeUpdate, format the value as you like.
Can deal with the imported structure.
Consider:
Hour("12:03:00 PM") + Minute("12:03:00 PM")/60 + Second("12:03:00 PM")/3600
This calculates to 12.05
So don't change the raw data, calculate in query. Just use your field name in place of the static value in the expression.
Related
One of DB2 table column value is appearing as 0.3901369869709015 and we need to compare this value against my expected value as 0.390136986970901. I tried to get the value from DB2 by using Decimal/Dec method. With that the value is getting round off and appearing as 0.390136986970902. Could you please help me to correct the below query that i am using to extract data from my DB2 table.
SELECT DECIMAL(UV_FIELDSCOREMAP,15,15) AS UV_FIELDSCOREMAP From cvsinst.uv_occ WHERE CASEID = '20170720'
Use TRUNCATE(UV_FIELDSCOREMAP, 15) instead.
So I'm working on editing some SQL code and I've just began learning it. I'm trying to fix an update query so it updates a table's value5 column with a corresponding database value. The value type from the database is a number, which I want to convert to a date and place into my table. The database number is in yyyymmdd format so I've been trying to use datefromparts() which doesn't work. Anyone have any ideas?
UPDATE tbl INNER JOIN dB ON
(dB.value1= tbl.value1 OR
dB.value2 =tbl.value2 ) AND
(LEFT(dB.value3 ,5)=tbl.value3 ) AND
(dB.value4 =tbl.value4 )
SET tbl.value5 = DateFromParts(Left(dB.value5,4),Mid(dB.value5,5,2),Right(dB.value5,2))
WHERE tblInvoice.value5 IS NULL;
The current program uses the code
"SET tbl.value5 = dB.value5"
instead (it runs perfectly fine) and I am having another issue with testing the conversion SQL code (datefromparts()). Because I am converting from numbers to time/date, I have to go into the design view of the target table and change the input data type of the value5 column from numbers to time/date. When I run the query with the conversion SQL code, the query stalls for a bit and no values get updated, leaving me with just a blank value5 column. If I now want to fill in the original number values, I change the SQL code back into its original "SET tbl.value5 = dB.value5", change the input data type from time/date to numbers, and rerun the program. The query stalls and no values are updated, and I am again left with blank columns, even though the same code left me with the corrected update values before the modifications to the SQL and table input Data types. I come from a VBA background and I'm just really confused with how this is working. Any tips would be appreciated, thanks!
Have you tried with substring instead?
SELECT DATEFROMPARTS ( left('20101231',4), substring('20101231',5,2), right('20101231',2) ) AS Result;
MS Access (and MS Jet too) have no DateFromParts function. Using DateSerial instead.
SET tbl.value5 = DateSerial(Left(dB.value5, 4), Mid(dB.value5, 5, 2), Right(dB.value5, 2))
It's not clear if you work with T-SQL or Access SQL. In Access, you can use Format:
SET tbl.value5 = CDate(Format(dB.value5, "####\/##\/##"))
In T-SQL you could use a similar method.
I am using SQL Server Management Studio 2012. I work with medical records and need to de-identify reports. The reports are structured in a table with columns Report_Date, Report_Subject, Report_Text, etc... The string I need to update is in report_text and there are ~700,000 records.
So if I have:
"patient had an EKG on 04/09/2012"
I need to replace that with:
"patient had an EKG on [DEIDENTIFIED]"
I tried
UPDATE table
SET Report_Text = REPLACE(Report_Text, '____/___/____', '[DEIDENTIFED]')
because I need to replace anything in there that looks like a date, and it runs but doesn't actually replace anything, because apparently I can't use the _ wildcard in this command.
Any recommendations on this? Advance thanks!
You can use PATINDEX to find the location of Date and then use SUBSTRING and REPLACE to replace the dates.
Since there may be multiple dates in the Text you have to run a while loop to replace all the dates.
Below sql will work for all dates in the form of MM/DD/YYYY
WHILE EXISTS( SELECT 1 FROM dbo.MyTable WHERE PATINDEX('%[0-9][0-9]/[0-9][0-9]/[0-9][0-9][0-9][0-9]%',Report_Text) > 0 )
BEGIN
UPDATE t
SET Report_Text = REPLACE(Report_Text, DateToBeReplaced, '[DEIDENTIFIED]')
FROM ( SELECT * ,
SUBSTRING(Report_Text,PATINDEX('%[0-9][0-9]/[0-9][0-9]/[0-9][0-9][0-9][0-9]%',Report_Text), 10) AS DateToBeReplaced
FROM dbo.MyTable AS a
WHERE PATINDEX('%[0-9][0-9]/[0-9][0-9]/[0-9][0-9][0-9][0-9]%',Report_Text) > 0
) AS t
END
I have tested the above sql on a dummy table with few rows.I don't know how it will scale for your data but recommend you to give it a try.
To keep it simple, assume that a number represents an identifying element in the string so look for the position of the first number in the string and the position of the last number in the string. Not sure if this will apply to your entire set of records but here is the code ...
I created two test strings ... the one you supplied and one with the date at the beginning of the string.
Declare #tstString varchar(100)
Set #tstString = 'patient had an EKG on 04/09/2012'
Set #tstString = '04/09/2012 EKG for patient'
Select #tstString
-- Calculate 1st Occurrence of a Number
,PATINDEX('%[0-9]%',#tstString)
-- Calculate last Occurrence of a Number
,LEN(#tstString) - PATINDEX('%[0-9]%',REVERSE(#tstString))
,CASE
-- No numbers in the string, return the string
WHEN PATINDEX('%[0-9]%',#tstString) = 0 THEN #tstString
-- Number is the first character to find the last position and remove front
WHEN PATINDEX('%[0-9]%',#tstString) = 1 THEN
CONCAT('[DEIDENTIFIED]',SUBSTRING(#tstString, LEN(#tstString)-PATINDEX('%[0-9]%',REVERSE(#tstString))+2,LEN(#tstString)))
-- Just select string up to the first number
ELSE CONCAT(SUBSTRING(#tstString,1,PATINDEX('%[0-9]%',#tstString)-1),'[DEIDENTIFIED]')
END AS 'newString'
As you can see, this is messy in SQL.
I would rather achieve this with a parser service and move the data with SSIS and call the service.
We are updating column A with the exact value from column B. The length of column B is 255 and column A is 4. The data in column B has been verified by LEN(REVERSE(colB)) to be only 4. When we try to update the error message says:
'String or binary data would be truncated.'
here is the query:
update table
set columnA=columnB
where Column B in ('ABC','ABCD','AB')
we have also verified that this works:
update table
set columnA=left(columnB,4)
where Column B in ('ABC','ABCD','AB')
any guesses as to what could be wrong?
thanks
It could be that you are using a char (not varchar) data type for column B, in which case your database engine may consider the width of the column, regardless of the width of the data. A trim function may then get rid of the error.
SQL doesn't check the actual length of the string - it just detects that the string value COULD overflow the new container and gives you an error message. Try this:
update table set ColumnA=(select LEFT(ColumnB, 4) from table where ColumnB in ('ABC', 'ABCD', 'AB'));
This selects only the first four characters of the data from columnB.
This query works And I am ok with it.
update table
set columnA=columnB
where Column B in ('ABC','ABCD','AB') and len(columnb)<=4
I am still curious as to why
Using Oracle SQL Developer v3.2.20.09:
I have a table of data where, among all the other data, I have a column of all numeric results (for examples' sake, RESULT_NUM) but due to the way it is stored and used, is a varchar2 field. I need to pull all the records for the Body Temperature Codes (BT, TEMP, TEMPERATURE in the VT_CODE field) where result_num > 100 (everything is in Fahrenheit, so searching on the result alone will work).
So, my simple statement is:
Select * from VITALS where VT_CODE in ('BT', 'TEMP', 'TEMPERATURE');
This kicks me back all of the body temp records, which is over 2M. Now I need to refine it to get results that are over over 100.
When I try to add "and result_num > 100" I get an error because it is a varchar field I am trying to search with a number.
When I try to add "and result_num > '100'", it executes without error because it is a character value, but it returns everything greater than 1, not 100, which is everything, obviously.
Please help.
Try the following
and convert(int,result_num) > 100
or
and CAST(result_num as INTEGER) > 100