What is type in Oracle procedure?
The %TYPE attribute lets you declare a constant, variable, collection element, record field, or subprogram parameter to be of the same data type as a previously declared variable or column (without knowing what that type is).
What is the difference between type and Rowtype in PL SQL?
%TYPE : Used to declare a field with the same type as that of a specified table’s column. %ROWTYPE: Used to declare a record with the same types as found in the specified table, view or cursor (= multiple columns).
What is Number data type in PL SQL?
The NUMBER datatype reliably stores fixed-point or floating-point numbers with absolute values in the range 1E-130 up to (but not including) 1.0E126 . A NUMBER variable can also represent 0 .
What are PL SQL data types?
Data types (PL/SQL)
|PL/SQL data type||DB2® SQL data type||Description|
|INT||INT||Signed four-byte integer numeric data|
|INTEGER||INTEGER||Signed four-byte integer numeric data|
|LONG||CLOB (32760)||Character large object data|
|LONG RAW||BLOB (32760)||Binary large object data|
What is difference between Rowtype and type record?
What is difference between % ROWTYPE and TYPE RECORD ? % ROWTYPE is to be used whenever query returns a entire row of a table or view. TYPE rec RECORD is to be used whenever query returns columns of different table or views and variables.
What is record data type?
A record type is a composite data type that consists of one or more identifiers and their corresponding data types. You can create user-defined record types by using the TYPE IS RECORD statement within a package or by using the CREATE TYPE (Object) statement. Dot notation is used to reference fields in a record.
Is PL SQL table is a user-defined data type?
PL/SQL allows use from within functions and procedures of the SQL features that support user-defined types. The parameters and variables of PL/SQL functions and procedures can be of user-defined types.
What is procedure in PL SQL with example?
Procedure Vs. Function: Key Differences
|Used mainly to a execute certain process||Used mainly to perform some calculation|
|Cannot call in SELECT statement||A Function that contains no DML statements can be called in SELECT statement|
|Use OUT parameter to return the value||Use RETURN to return the value|
What are the two types of exceptions in PL SQL?
PL/SQL – Exceptions
- System-defined exceptions.
- User-defined exceptions.
Why do we use Rowtype and type in PL SQL?
For easier maintenance of code that interacts with the database, you can use the %ROWTYPE attribute to declare a variable that represents a row in a table. A PL/SQL record is the datatype that stores the same information as a row in a table. In PL/SQL, records are used to group data.