PL/SQL Iterative control statements allow a programmer to execute a set of statements multiple times. All iterative statements must have a conditional statement to check whether to continue to execute…
Category: SQL
Like any procedural programming language, PL/SQL programs can also using Branching structures to control flow of logic. The conditional or branching statements of PL/SQL are IF-THEN-END IF IF-THEN-ELSE-END IF IF-THEN-ELSIF-END…
Programming in PL/SQL requires you to understand the existence and availability of declared variables for correct coding. PL/SQL variable scope and visibility lets you understand where and when the variables…
PL/SQL variables can be declared in two ways. First one is by using the in-built data types. Second method is by using existing database objects in variable declaration instead of…
In addition to PL/SQL variables and constants, you can use variables in two ways. PL/SQL Substitution and Bind Variables allow you pass on values to PL/SQL programs while execution. Lets…
Variables and constants are the most important lexical elements in any programming language. The ability to declare and use variables by PL/SQL is one of its advantages over SQL. We…
Data type in any programming language lets programmer identify and define the kind of data they will use in their codes. These data types can be numbers, text, dates, images,…
When you create a schema, it may be possible that you forget to add some columns or constraints in a table. SQL Alter Table Statement gives you the capability to…
You need to learn certain basic things about PL/SQL before you begin creating code blocks in PL/SQL. Here are some PL/SQL fundamentals for you to remember. PL/SQL is NOT Case-Sensitive…
PL/SQL architecture defines how the PL/SQL blocks are executed in Oracle. Oracle provides PL/SQL engine that executes the Procedural Language part of a block. When an application program or a…