PL/SQL Code Naming Conventions and Formatting Guidelines
Case
PL/SQL, like SQL, is case insensitive. The general guidelines here are as follows:
Use uppercase for keywords (BEGIN, EXCEPTION, END, IF THEN ELSE, LOOP, END LOOP, etc.), datatypes (VARCHAR2, NUMBER), built-in functions (LEAST, SUBSTR, etc.), and user-defined subroutines (procedures, functions, packages).
Use lowercase for variable names as well as column and table names in SQL.
White Space
White space (extra lines and spaces) is as important in PL/SQL as it is in SQL. It is a main factor in providing readability. In other words, you can reveal the logical structure of the program by using indentation in your code. Here are some suggestions:
Put spaces on both sides of an equality ...
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