Description:
Setting MySqlParameter.MySqlDbType to MySqlDbType.Int24 throws an error similar to "Incorrect integer value: '?' for column 'data' at row 1" when a prepared command is executed.
When "command.ExecuteNonQuery()" is executed in the attached sample, the following exception is thrown:
MySql.Data.MySqlClient.MySqlException (0x80004005): Incorrect integer value: '?12' for column 'data' at row 1
at MySql.Data.MySqlClient.MySqlStream.ReadPacket()
at MySql.Data.MySqlClient.NativeDriver.GetResult(Int32& affectedRow, Int64& insertedId)
at MySql.Data.MySqlClient.Driver.GetResult(Int32 statementId, Int32& affectedRows, Int64& insertedId)
at MySql.Data.MySqlClient.Driver.NextResult(Int32 statementId, Boolean force)
at MySql.Data.MySqlClient.MySqlDataReader.NextResult()
at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)
at MySql.Data.MySqlClient.MySqlCommand.ExecuteNonQuery()
How to repeat:
Execute the following C#:
using (var connection = new MySqlConnection("...;IgnorePrepare=false"))
{
connection.Open();
using (var command = new MySqlCommand(@"drop table if exists prepared_statement_test;
create table prepared_statement_test(data MEDIUMINT);", connection))
{
command.ExecuteNonQuery();
}
using (var command = new MySqlCommand(@"insert into prepared_statement_test(data) values(@data);", connection))
{
command.Parameters.AddWithValue("@data", 1234567).MySqlDbType = MySqlDbType.Int24;
command.Prepare();
command.ExecuteNonQuery();
}
}
It can be worked around by writing:
command.Parameters.AddWithValue("@data", 1234567).MySqlDbType = MySqlDbType.Int32;
or:
command.Parameters.AddWithValue("@data", 1234567);;
Description: Setting MySqlParameter.MySqlDbType to MySqlDbType.Int24 throws an error similar to "Incorrect integer value: '?' for column 'data' at row 1" when a prepared command is executed. When "command.ExecuteNonQuery()" is executed in the attached sample, the following exception is thrown: MySql.Data.MySqlClient.MySqlException (0x80004005): Incorrect integer value: '?12' for column 'data' at row 1 at MySql.Data.MySqlClient.MySqlStream.ReadPacket() at MySql.Data.MySqlClient.NativeDriver.GetResult(Int32& affectedRow, Int64& insertedId) at MySql.Data.MySqlClient.Driver.GetResult(Int32 statementId, Int32& affectedRows, Int64& insertedId) at MySql.Data.MySqlClient.Driver.NextResult(Int32 statementId, Boolean force) at MySql.Data.MySqlClient.MySqlDataReader.NextResult() at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior) at MySql.Data.MySqlClient.MySqlCommand.ExecuteNonQuery() How to repeat: Execute the following C#: using (var connection = new MySqlConnection("...;IgnorePrepare=false")) { connection.Open(); using (var command = new MySqlCommand(@"drop table if exists prepared_statement_test; create table prepared_statement_test(data MEDIUMINT);", connection)) { command.ExecuteNonQuery(); } using (var command = new MySqlCommand(@"insert into prepared_statement_test(data) values(@data);", connection)) { command.Parameters.AddWithValue("@data", 1234567).MySqlDbType = MySqlDbType.Int24; command.Prepare(); command.ExecuteNonQuery(); } } It can be worked around by writing: command.Parameters.AddWithValue("@data", 1234567).MySqlDbType = MySqlDbType.Int32; or: command.Parameters.AddWithValue("@data", 1234567);;