How to change datatype of primary key field in mysql workbench?

StackOverflow https://stackoverflow.com/questions/18558633

Question

In mysql workbench, I created a new table and added a column id, and by default its datatype is set to INT, PK and NN boxes are selected. When I tried to change the datatype of id column to VARCHAR(), it gave the following error:

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What is wrong?

Was it helpful?

Solution

change varchar() it to varchar(10) I believe you are missing the width of varchar

OTHER TIPS

varchar() is an empty statement, seeking the width of the "string" that you are setting. You have to input the amount of characters to accept. (Ex: varchar(10) or varchar(45)).

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