Unable to convert MySQL date/time value to System.DateTime

Question

I am using ibatis and C#. i get a result from a select query that has CreatedDate as one of the field. The Datatype of CreatedDate in Mysql is Date. I assign the result set

Answer 1

One thing who works too is changing your reader action. I was having this problem when I wrote

string myvar = reader.GetString(0);

Then I used to write this

object myvar = reader.GetValue(0);

And no more error.

Answer 2

You need to do the simple change with the connection string you added for MySql database. i.e CONVERT ZERO DATETIME = TRUE

<add name="NAMEOFYOURCONNECTIONSTRING" connectionString="server's HOSTNAMEorIP(i.e Localhost or IP address);user id=USER_ID(i.e User ID for login Database);Pwd=PASSWORD(i.e User Password for login Database);persistsecurityinfo=True;database=NAMEOFDATABASE;Convert Zero Datetime=True" providerName="MySql.Data.MySqlClient"/>

Answer 3

I solved my problem by setting the column's default value as null data rather than using 0000-00-00 00:00:00:

update table set date = null

Answer 4

This worked for me:

SELECT 
    IF(tb.Date1 = '0000-00-00 00:00:00', NULL, tb.Date1) AS ValidDate
FROM MyTable AS tb

Answer 5

The problem in the format, actually mysql have a different format (yyyy-mm-dd) for the date/time data type and to solve this problem use the mysql connector library for .net from here http://dev.mysql.com/downloads/connector/net/ it will give other data type for the date/time called MysqlDateTime

or you can format the date/time data in your sql statement using DATE_FORMAT(date,format) you can get more details from here http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_date-format

but i don't recommend this because you will loose the power of date/time data type (for example you can't compare) because now you will convert it to string but i think it will be useful in the reports

Answer 6

This issue happened to me when a date column in my table had been set to 0 rather than null - there was a bug in my code that.

Looking at the table I could see that the field had been set to a date of 000-00-00 - once I had reset the offending field to null the issue went away.