Bug #72147 | Cannot append a blank or NULL value to a nullable MySQL field | ||
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Submitted: | 27 Mar 2014 18:30 | Modified: | 8 Aug 2014 2:01 |
Reporter: | Matt Meridius | Email Updates: | |
Status: | Duplicate | Impact on me: | |
Category: | MySQL for Windows: MySQL for Excel | Severity: | S2 (Serious) |
Version: | 1.2.0 | OS: | Windows (Win 8.1 64bit MySQL 5.6.16.0) |
Assigned to: | CPU Architecture: | Any |
[27 Mar 2014 18:30]
Matt Meridius
[27 Mar 2014 20:07]
Matt Meridius
Upgraded to MySQL for Excel 1.2.1. Didn't see a fix for my problem in the release notes but figured it was worth a shot anyway. Problem still exists :(
[27 Mar 2014 20:30]
Javier Treviño
On a quick test I could perfectly use blank values to insert them to a nullable integer column. The word NULL does not work by design, even in Excel it is not used for null values, the standard is to use an empty string. If you are using a formula please provide the exact formula to reproduce your scenario.
[28 Mar 2014 2:21]
Matt Meridius
Thanks for responding. An example of the formula is: =IFERROR(match(-- lookup value --),"") If the match formula finds a number (always a two or three digit number) then the number is used. If it doesn't, the formula above yields a null string in the cell. But this didn't work in MySQL for Excel 1.1.0 so I changed the formula to =IFERROR(match(-- lookup value --),"NULL") and it worked fine. I'm aware that NULL isn't used by excel as an operative value. I'm creating formulas to produce data that will transfer to MySQL successfully and this is what worked. The idea to try this was based on the fact that when I exported fields from the database, MySQL was exporting the word NULL for null fields. So when a null string didn't work I decided to try giving NULL back to it when needed. On MySQL for Excel 1.2.0 and 1.2.1 neither option works. In fact after my last post the append function didn't work at all. If it's working for you then perhaps there's a version compatibility issue? For my part, I'm running Office Home and Student 2010 (x64) and win 8.1 x64. Current installed software is: Microsoft Visual Studio 2010 Tools for Office Runtime (x64) 10.0.31117 MySQL Connector C++ 1.1.3 MySQL Connector J 5.1.29 MySQL Connector Net 6.8.3 MySQL Connector/C 6.1.3 MySQL Connector/ODBC 5.2.6 MySQL Documents 5.6.16 MySQL Examples and Samples 5.6.16 MySQL Installer 1.1.5.0 MySQL Notifier 1.1.5 MySQL Server 5.6.16 MySQL Utilities 1.3.6 MySQL Workbench CE 6.0.9 MySQL For Excel 1.1.0 (I backed off to this due to 1.2.0 problems) As I've noted in another post about installation problems, the installer msi didn't flag any missing or incompatible software, neither when I installed the entire 5.6.16 package (which included 1.2.0) or when I upgraded to 1.2.1 using the standalone.
[8 Aug 2014 1:58]
Javier Treviño
Hi Matt, thanks for the bug report. I verified it and it is actually related to formulas; values returned by formulas are not being recognized by MySQL for Excel so they cannot be appended to an existing MySQL table. Since the problem is related to ALL values coming from formulas, and not to null values, which affect both Append and Export Data operatons, I created the following other bug and will close this one, please subscribe to this bug now if you wish to be notified when it gets fixed: http://bugs.mysql.com/bug.php?id=73505 Following up with the null values, after the bug I mentioned is fixed, your formulas should return an empty string ("") when your intention is to insert a null value.
[8 Aug 2014 2:01]
Javier Treviño
Since the problem's scope is bigger than described in this bug, this bug is being flagged as duplicate of this other one: http://bugs.mysql.com/bug.php?id=73505