Space inside parenthesis of expression

• No space

  Option: fmt096_space_padding_expression_parenthesis = false, type: TFmtBoolean.

  SELECT (((a - b) - c))  
  FROM   t 

• One space

  Option: fmt096_space_padding_expression_parenthesis = true, type: TFmtBoolean.

  SELECT (( ( a - b ) - c ))  
  FROM   t  

• Do not use spaces between multiple parentheses or semicolons (;). Always precede the first opening parenthesis of a set with a space.

  Option: fmt096_space_padding_expression_parenthesis = false, type: TFmtBoolean.

  AND (((x < 5) AND (y < 5))
  OR   ((x > 5) AND (y > 5)));

  Reference: http://www.dba-oracle.com/t_plsql_coding_spacing_standards.htm