PL/SQL blocks are groups of one or more SQL or PL/SQL statements that are enclosed within a BEGIN and END block. PL/SQL variables are used to store...
PL/SQL (Procedural Language/Structured Query Language) is an extension of SQL that enables developers to write procedural code and implement business...
Over() It is a similar thing to group by but instead of shrinking the table it initializes the value in front of each column & gives its results in...