Import dd-mmm-yy hh:mm:ss / dd-mmm-yyyy hh:mm:ss from flatfile to DateTime

Question

I have a three flat files with data from Oracle.  The dates are in two formats:
01-APR-10 00:00:00
01-Apr-2010 16:27:07
SQL2008 R2 SSIS.
On the connection manager I have the date fields as string[DT_STR].
The SQL destination table uses [datetime]
In the Data Conversion Data Type, I have tried the following:
DT_DBTIMESTAMP
DT_DBTIMESTAMP2
Error is: Data conversion failed while converting column "DELETE_DATE" (556) to column "DELETE_DATE_XX" (559).  The conversion returned status value 2 and status text "The value could not be converted because of a potential
loss of data.".
Suggestions??
-Al H

Answer 1

Hi AI H,
From the error message “Data conversion failed while converting column "DELETE_DATE" (556) to column "DELETE_DATE_XX" (559).  The conversion returned status value 2 and status text "The value could not be converted because of
a potential loss of data.”, we can infer the issue is caused by the input column “DELETE_DATE” cannot convert to the output column DELETE_DATE_XX in Data Conversation Transformation.
In Integration Services, when you want to convert from a string to a date or time data type, the string must use the string format that corresponds to the appropriate date or time data type. For example, to successfully convert some date strings to the DT_DBTIMESTAMP
data type, these date strings must be in the format, "yyyy-mm-dd hh:mm:ss[.fff]". For more details, please see:
https://technet.microsoft.com/en-us/library/ms141036(v=sql.120).aspx
So to fix this issue, we should convert the original format data to “yyyy-mm-dd hh:mm:ss”, then import the date to SQL destination table. The following expression is for your reference:
LEN(DELETE_DATE) == 18 ? ("20" + SUBSTRING(DELETE_DATE,8,2)) : SUBSTRING(DELETE_DATE,8,4)+ "-" + (UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "JAN" ? "01" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "FEB" ? "02" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "MAR" ? "03" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "APR" ? "04" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "MAY" ? "05" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "JUN" ? "06" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "JUL" ? "07" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "AUG" ? "08" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "SEP" ? "09" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "OCT" ? "10" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "NOV" ? "11" : UPPER(SUBSTRING(DELETE_DATE, 4, 3)) = "DEC" ? "12" : "00") "-" + SUBSTRING(DELETE_DATE, 1, 2))+SUBSTRING(DELETE_DATE,LEN(DELETE_DATE)-8,9)
The following blog about Converting Strings to Dates in the Derived Column Component is for your reference:
http://toddmcdermid.blogspot.com/2008/11/converting-strings-to-dates-in-derived.html
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support