Data truncated for column?

Question

After changing the data type of a MySql column in order to store Twilio call ids (34 char strings), I try to manually change the data in that column with:

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Answer 1

Your problem is that at the moment your incoming_Cid column defined as CHAR(1) when it should be CHAR(34).

To fix this just issue this command to change your columns' length from 1 to 34

ALTER TABLE calls CHANGE incoming_Cid incoming_Cid CHAR(34);

Here is SQLFiddle demo