Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE Templates (Template_ID VARCHAR, Template_Type_Code VARCHAR)
TABLE: CREATE TABLE Documents (Template_ID VARCHAR)

### Question ###
How many documents are using the template with type code 'PPT'?

### Accurate SQL ###

SELECT COUNT(*) FROM Documents AS T1 JOIN Templates AS T2 ON T1.Template_ID = T2.Template_ID WHERE T2.Template_Type_Code = 'PPT'