MySQL for Excel 1.3.5 has been released

The MySQL Windows Experience Team is proud to announce the release of MySQL for Excel version 1.3.5. This is a maintenance release for 1.3.x. It can be used for production environments.

MySQL for Excel is an application add-in enabling data analysts to very easily access and manipulate MySQL data within Microsoft Excel. It enables you to directly work with a MySQL database from within Microsoft Excel so you can easily do tasks such as:

  • Importing MySQL data into Excel
  • Exporting Excel data directly into MySQL to a new or existing table
  • Editing MySQL data directly within Excel

MySQL for Excel is installed using the MySQL Installer for Windows which comes in 2 versions:

  • Full (150 MB) which includes a complete set of MySQL products with their binaries included in the download
  • Web (1.5 MB – a network install) which will just pull MySQL for Excel over the web and install it when run.

You can download MySQL Installer from our official Downloads page at

MySQL for Excel can also be downloaded by using the product standalone installer found at this link


Changes in MySQL for Excel 1.3.5 (2015-10-23)

This section documents all changes and bug fixes applied to MySQL for Excel since the release of 1.3.5. Several new features were added to the 1.3.x branch, for more information see What Is New In MySQL for Excel 1.3 (

Functionality Added or Changed

  • A new Append Data advanced option was added, titled Confirm column mapping overwriting. When enabled, dragging and dropping source columns over target columns that were already mapped (in other words, they already contained a mapped source column) now triggers a confirmation dialog asking if the overwrite should be executed. This option is disabled by default as data overwrite is a common operation.
  • Added a new advanced option called Show column data types above column names. When checked, the Append Data dialog grid will show data type information for columns on source and target grids. This is especially helpful when manually mapping columns.
  • Added support for the JSON data type that was added in MySQL Server 5.7. The JSON data type is now selectable from the Export Data dialog, if the advanced option to show all data types is enabled. All data operations (Import, Export, Append and Edit) now function with the JSON data type.

Bugs Fixed

  • Attempting to save data to a column where the data can not be written (incompatible data type) now generates an error.
  • Changed the way data type related warnings are linked to grid columns in the Append Data dialog. Now the warnings are linked to the target (lower) grid view columns, because a single source column can be mapped to multiple target columns, and the warnings are about source data not being suitable for the target column’s data type.
  • When scrolling the target MySQL table grid horizontally, the upper column headers that contained names of the mapped source columns were not rendering text properly. The text moved while scrolling, and the column separators disappeared when scrolling to the right.
  • Change the data type detection logic for a column’s data that was failing when only the first row of data contained data, when the rest of the rows were empty.
  • The Append Data dialog was incorrectly mapping columns when only a single row of Excel data was selected to append. Also, if a single row of Excel data is selected with First Row Contains Column Names enabled, a warning is now displayed stating that no rows are available to complete the append operation.
  • Connection information created after the last save was cleared from memory when an Excel Workbook was closed, thus causing the connection information to not write to disk. Now the connection cleanup happens after a Workbook is saved, thereby saving the new connection information.
  • Stopped using hidden defined names to store formulas that transform date values into a date format used by MySQL. These defined names were being detected by Excel as macros or user functions that could not be saved in macro-free workbooks, thus generating bogus warnings every time a Workbook was saved when the Excel add-in was active.
  • Updated the data connection library to Connector/NET v6.9.8, which fixes the problem of accessing a schema that contained Unicode (non-ASCII) characters in its name. These databases now successfully open.
  • Deleted stored mappings would remain in the stored mapping method list.
  • Enhanced the custom grid view control used in the Append Data dialog to automatically adjust the width of the grid columns. This adjustment considers the grid’s cell contents, the base column header text, and also the contents of the additional header rows. Before, the target column width was too short.


Quick links:

Enjoy and thanks for the support!

MySQL Connector/J 5.1.37 has been released

I’m pleased to announce: MySQL Connector/J 5.1.37 Maintenance Release is now available.

MySQL Connector/J can be downloaded from the official distribution channels MySQL Downloads and The Central repository. Commercial license version is available for download at My Oracle Support.

As always, we recommend that you check the “CHANGES” file in the
download archive and/or the release notes to be aware of changes in behavior that might affect your application.

MySQL Connector/J 5.1.37 includes several bug fixes and other improvements. I’d like to highlight just a few:

Support for JDBC 4.2

Connector/J now provides implementations for pretty much all new JDBC 4.2 methods, namely for large update counts and max rows support.

The other big change is the support for the new temporal classes from java.time package. LocalDate, LocalDateTime, LocalTime are fully supported and can now be used in the multiple versions of setObject(...) and getObject(...) methods. They deliver results very similar to their counterparts, Date, Time and Timestamp respectively. The types OffsetDateTime and OffsetTime are partially supported via conversion to *CHAR types as MySQL doesn’t provide support for temporal data containing time zone information and, thus, doesn’t support the new TIME_WITH_TIMEZONE and TIMESTAMP_WITH_TIMEZONE JDBC types as well.

As a consequence to this upgrade, Connector/J 5.1.37 and future versions require Java 8 for its building process. We maintained, however, full compatibility with the already supported Java versions – Java 5 and above, Thus, this is a seamless replacement for the previous drivers versions you may be using in your projects.

New Connection Properties

sendFractionalSeconds. This property controls whether fractional seconds in timestamps are to be truncated on the client side or to be sent to the server side where they may be subject to rounding. It takes a boolean value:

Rounding fractional seconds may lead to undesired situations, especially when this results in apparently “big” temporal leaps, such as advancing a timestamp value to the next minute, day or even year. Many times this is not the required behavior for applications and setting this property to false safely cancels it.

Mind that this option applies only to prepared statements, callable statements and updatable result sets.

enableEscapeProcessing. This property, introduced as part of the support for JDBC 4.2, sets the default escape processing behavior for Statement objects. It takes a boolean value:

The method Statement.setEscapeProcessing() allows to set the escape processing behavior for individual statements. This method’s documentation refers that the connection property escapeProcessing can be used to set the default behavior, however, in Connector/J, this property is actually named enableEscapeProcessing.

Note that the default escape processing behavior in prepared statements is set by the long time available property processEscapeCodesForPrepStmts.

Changes in the Building Process

With JDBC 4.2 support comes a dependency on the Java 8 compiler and with it some changes in the building from source procedure. The documentation contains all the details you need to know but, the fast shortcut is that the previous ant property com.mysql.jdbc.jdk6 was upgraded to com.mysql.jdbc.jdk8 and holds the obvious reference to the JDK 8 path.

The optional property com.mysql.jdbc.java6.rtjar was added as well and is used to obtain the most accurate byte codes for every single JDBC implementation contained in this driver. You are not required to use it unless you are building for production, in which case we recommend you to set it too.

Bug Fixes

Several bug fixes were introduced aiming to improve your Connector/J experience.

We were able to fix a few things in the meta data structures, a time zone related adjustment, a couple of null point exceptions and corrected the right type of exception, all observed in very specific situations. We improved the authentication procedure, making it more robust. And, finally, we tweaked the driver to be fully compliant with latest MySQL server releases.


This release contains some contributions from end users. Special thanks to Jie Han and KwonNam for their valuable contributions.

Thank you all for your support as well. Enjoy this new Connector/J and keep in touch!

On behalf of the MySQL Connector/J Team.

MySQL Connector/NET 6.7.9, 6.8.7, and 6.9.8 have been released

Dear MySQL users,

MySQL Connector/Net 6.7.9, 6.8.7, and 6.9.8 are maintenance releases for the series of the .NET driver for MySQL. They can be used for production environments.

They are appropriate for use with MySQL server versions 5.5-5.7.

  • The GB18030 Chinese character set is now supported, a character set that was added in MySQL 5.7.4.
  • The JSON type is now supported, a type that was added in MySQL 5.7.8.
  • Generated columns (GENERATION_EXPRESSION) are now supported, a feature added in MySQL 5.7.6.

An additional entry added for 6.8.7:

  • A connection string that included Chinese characters for a database or uid property would emit the following exception;
    “MySqlException: Unknown database ‘???'”. To solve this, the handshake process was hanged to use bytes instead of encoded strings.

The documentation is available at:

Nuget packages are available at:

Enjoy and thanks for the support!

On behalf of the MySQL Connector/NET Team.