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Maximum length for columns of SQL type varchar
I've been running a couple of processes in Rapidminer in which I run my query to write database in MySQL.
I've been uploading quite a few datasets with no issues but experienced an error message I've never seen before.
"attribute page ref contains values with length> 255 which is the maximum length for columns of SQL type Varchar"
I'm using the write database operator and other files and processes are fine to upload. When I look at mySql table the attributes Page_ref is of datatype varchar(900). I've tried to both tick and untick the set dafault varchar lenght in the write database operator but it does not seem to make a difference.
Any ideas what is causing this error?