.net - Why cant i store 20 kilibytes image in mysql -


i storing thumbnail size images (less 50kb) in tinyblob field in mysql using mysqlconnector .net using following code

dim imgcov new imageconverter()         dim imgarray byte() = directcast(imgcov.convertto(picturebox1.image , gettype(byte())), byte())          try             using conn new mysqlconnection(constr)                 conn.open                 dim sql string ="insert services(name,code,emp_id,image) values(@name,@code,@emp_id,@image)"                 using cmd new mysqlcommand(sql,conn)                     cmd.parameters.add("@name", mysqldbtype.varchar, 45).value ="ironing"                     cmd.parameters.add("@code", mysqldbtype.varchar, 45).value ="irn"                     cmd.parameters.add("@emp_id", mysqldbtype.int32).value =1                     cmd.parameters.add("@image", mysqldbtype.longblob, 100).value=imgarray                     cmd.executenonquery ()                 end using             end using             msgbox("insert complete")          catch ex exception             msgbox(ex.message)         end try

the problem when store image, doesn't save data. apparent when tried retrieving , started getting errors.

investigating errors, simple increased field size longblob there after worked fine.

so why cant store 20kb image in tinyblob field?

tinyblob can hold 256 bytes; need @ least regular blob, can store 64kb.

http://dev.mysql.com/doc/refman/5.7/en/storage-requirements.html


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