VARRAYs (Variable-Size Arrays) in Oracle PL/SQL
admin
VARRAYs (Variable-Size Arrays) in Oracle PL/SQL What is a VARRAY? A VARRAY (Variable-Size Array) is an Oracle collection type that stores a fixed maximum number of elements of the same…
oracle
Nested Tables in Oracle
What is a Nested Table? A Nested Table is an Oracle collection type that stores multiple values of the same data type in a single column or PL/SQL variable. Unlike…
Package in Oracle PL/SQL
What is a Package? A Package is a database object that groups together related procedures, functions, variables, cursors, exceptions, and types into a single unit. A package consists of two…
Creating and Using Procedures in Oracle PL/SQL
What is a Procedure? A Procedure is a named PL/SQL block that performs a specific task. It is stored in the Oracle database and can be executed multiple times whenever…
%type and %rowtype in oracle
In Oracle PL/SQL, %TYPE and %ROWTYPE are attributes used to declare variables based on the data type of database columns or entire table rows. They make programs easier to maintain…
Oracle PL/SQL Control Statements
1. IF Condition The IF statement is used to execute a block of code when a specified condition is true. Syntax Example Output Description 2. IF-ELSE Condition Syntax Example Output…
Cursor in Oracle PL/SQL
A Cursor is a pointer to the result set of a SQL query. It allows PL/SQL to retrieve and process one row at a time from the query result. Cursors…
PL/SQL Block in Oracle
A PL/SQL Block is the basic unit of a PL/SQL program in Oracle. It is a group of SQL and PL/SQL statements that are executed together as a single unit.…
sql chapter 3
select * from dept_1; create view v1 as select id,name from dept_1; create table dept_1(id int,name varchar2(50));insert into dept_1 values(1,’mitak’);insert into dept_1 values(12,’sss’);insert into dept_1 values(10,’mitak’);insert into dept_1 values(3,’mitak’); select…
“lock in oracle”?
Depending on the context, it could mean several things: What is a Lock in Oracle? A lock in Oracle is a mechanism used to control concurrent access to database data.…