SQL capitalization identifier

Set identifier to preferred case option.

```SQL
SELECT department_id, 
       Min( salary )  
FROM   employees  
GROUP  BY department_id  
```

• Quoted identifier

  SELECT [department_id], 
         Min( [salary] )  
  FROM   [employees]  
  GROUP  BY [department_id]  

• Prefixed identifier

  Prefixed identifier is user defined identifier. For example, you can define identifier start with fn_ as SQL Server system function. This format option apply to all prefixed identifiers.

  SELECT *
  FROM fn_virtualfilestats(DB_ID(N'AdventureWorks2012'), 2);

• Table name

• Column name

• Function name

• Alias

• Datatype

• Variable