For uniformity, every Coronium method returns an "answer" table (unless noted otherwise) with the following keys:

.result¶

The Coronium method result. This may be a single value, a table, a table array, or a table array of tables. Check with the API documentation to see what the result will hold.

.error¶

If there is an error the error key will hold the string representation. If there is no error, the error key will be nil.

.errorCode¶

If there is an error, there may optionally be an errorCode. If there is no errorCode it will be nil. Not all errors return errorCodes.

Example¶

local answer = coronium.mysql.query( { database = "mydb" },
"SELECT * FROM users" )

if not answer.error then
  print( #answer.result )
else
  print( answer.error )
end