How long is the SHA256 hash in MySQL?

As the name "SHA256" suggest, it is 256 bits long. If we are using hexadecimal notation then digit codes represent 4 bits. In order to represent 256, we need 256/4 = 64 bits. We need a data type varchar(64) or char(64).

Creating a table for our example.

mysql> create table SHA256Demo
   -> (
   -> Password varchar(64)
   -> );
Query OK, 0 rows affected (0.54 sec)

Inserting records into table.

mysql> insert into SHA256Demo values(' 4e2e1a39dba84a0b5a91043bb0e4dbef23970837');
Query OK, 1 row affected (0.18 sec)

Displaying all records.

mysql> select *From SHA256Demo;

The following is the output.

+-------------------------------------------+
| Password                                  |
+-------------------------------------------+
|  4e2e1a39dba84a0b5a91043bb0e4dbef23970837 |
+-------------------------------------------+
1 row in set (0.00 sec)