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- PL/SQL Tutorial
- PL/SQL Useful Resources
- Selected Reading
In this chapter, we will discuss Records in PL/SQL. A record is a data structure that can hold data items of different kinds. Records consist of different fields, similar to a row of a database table.
For example, you want to keep track of your books in a library. You might want to track the following attributes about each book, such as Title, Author, Subject, Book ID. A record containing a field for each of these items allows treating a BOOK as a logical unit and allows you to organize and represent its information in a better way.
PL/SQL can handle the following types of records −
- Table-based
- Cursor-based records
- User-defined records
Records 1 6 10000
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Records 1 6 100 Percent
Table-Based Records
The %ROWTYPE attribute enables a programmer to create table-based and cursorbased records.
The following example illustrates the concept of table-based records. We will be using the CUSTOMERS table we had created and used in the previous chapters −
When the above code is executed at the SQL prompt, it produces the following result −
Cursor-Based Records
The following example illustrates the concept of cursor-based records. We will be using the CUSTOMERS table we had created and used in the previous chapters −
When the above code is executed at the SQL prompt, it produces the following result −
User-Defined Records
Vegas casinos online gambling. PL/SQL provides a user-defined record type that allows you to define the different record structures. These records consist of different fields. Suppose you want to keep track of your books in a library. You might want to track the following attributes about each book −
- Title
- Author
- Subject
- Book ID
Defining a Record
The record type is defined as −
The Book record is declared in the following way −
Accessing Fields
To access any field of a record, we use the dot (.) operator. The member access operator is coded as a period between the record variable name and the field that we wish to access. Following is an example to explain the usage of record −
https://download-cake.mystrikingly.com/blog/script-debugger-7-0-10-applescript-authoring-environment. When the above code is executed at the SQL prompt, it produces the following result −
Records 1 6 100 Pounds
Records as Subprogram Parameters
What Is 1.6% Of 100
Adobe acrobat reader dc 2019 download offline. You can pass a record as a subprogram parameter just as you pass any other variable. You can also access the record fields in the same way as you accessed in the above example −
100.6 To C
When the above code is executed at the SQL prompt, it produces the following result −