This is part 2 of a series on learning PL/SQL. If you are new to PL/SQL, you should read part 1 first.
Also, check out the Article Index.
spoken about the declaration section of a PL/SQL block. The declaration
section is the first section of a block. In the declaration section you
will identify a variable (give it a name), declare the datatype,
optionally declare it as a constant and optionally assign it a value.
going to discuss PL/SQL datatypes in detail in a future article. For
now, don’t worry so much about the data types as about the format of