DB2 LOAD data into table - Interpreting the error messages I encountered some constraint issues when loading data from file into table 

**
SQL3109N  The utility is beginning to load data from file
"xag".
SQL3500W  The utility is beginning the "LOAD" phase at time "07/30/2012
23:33:53.199615".
SQL3519W  Begin Load Consistency Point. Input record count = "0".
SQL3520W  Load Consistency Point was successful.
SQL3116W  The field value in row "F12-33856" and column "9" is missing, but
the target column is not nullable.
SQL3185W  The previous error occurred while processing data from row
"F12-33856" of the input file.
SQL3227W  Record token "F12-33856" refers to user record number "440439".**

db2 LOAD client from data  of del MESSAGES msg replace INTO TABLE_L ;


I thought this message is telling me that we have an constraint issue on row 440439, but seems it is not the case. anyone know how to read the messages ?
According to IBM SQL3227W states: 


  "Record token token1 refers to user record number token2.
  Explanation
  
  An error or warning was encountered during LOAD, IMPORT or EXPORT of a
  table. CPU parallelism was greater than 1 at the time the problem was
  encountered, and an SQL message was written which identified the user
  record with a special unique token. This message serves to map the
  unique record token to the record number of the source user data.
  User response
  
  Refer to the original SQL message returned for appropriate action."


So this refers you back to the previous error. And the next one SQL3185W says:


  "The previous error occurred while processing data from row row-number
  of the input file.
  Explanation
  
  This message provides the identification of the row where the error
  occurred for the previous message listed in the message file (for
  example, SQL3306).
  User response
  
  No action is required."


So...Phil nailed it on the head, we really need to see what comes before these messages. Do you have a log of the output that you could post to your question? We could better help you with interpreting results then.

That being said, I would highly encourage you to poke around Information Center like I did as it can best help you find what those pesky "SQL" messages mean. The links I found were for 9.5. Just switch to the version of DB2 that you are using to make sure you have the most accurate information. I use Information Center for just about everything.


  EDIT: Your updated helps a lot. Here is the error:

SQL3116W  The field value in row "F12-33856" and column "9" is missing, but
the target column is not nullable.
SQL3185W  The previous error occurred while processing data from row
"F12-33856" of the input file.
SQL3227W  Record token "F12-33856" refers to user record number "440439".**

  
  In short, it looks like a null was written to "column 9" of our table
  and that you have a not null constraint on that column. Now the trick
  is locating which record had the issue. It is marked with two tokens
  it looks like. (F12-33856 and 440439). I guess I'd start with 440439
  first. That seems to me like it could be the primary key. Just a
  guess. But at least you know your issue is a null value for a non-null
  field.