mysql - creating columns in a database table using talend context variables -


i trying generate columns in myql database using context variables in talend open studio. how can generate context query accordingly that. have searched in google, there answers using tfileinput , edit schema can add columns manually there, don't want follow oder. having tmysqlrow input connected local db , under query section of how can use context variables generate columns in database. in way don't need drop table when have add new column.


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