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What Is a Record ?
A record is a group of related data items that stored in the fields, each with its own name and datatype. Assume that you have different data about an employee like name, hire date, and salary. These items are logically associated but dissimilar in type. The record containing a field for each item lets you treat the data as a logical unit. Consequently, records make it easier to organize and represent the information.
The attribute %ROWTYPE declare a record that presents a row in the database table. Though, you cannot specify the datatypes of the fields in the record or declare the fields of your own. The datatype RECORD lifts these restrictions and define your own records.
Find the account numbers of all customers whose balance is more than 10,000 $
COSMOZOI C THEORY - Richter (1865) proposed the cosmozoic theory that says that life came by spores (cosmozoa) or other particles from other planets on the earth.
Object Types An object type is a user-defined complex datatype which encapsulates the data structure along with the functions and procedures required to manipulate the data. Th
PL SQL Code Review HEADER ELEMENTS File Name Clear, meaningful and descriptive about main objective of the file. Multiple words are joined using underscores which adh
Avoiding Collection Exceptions In many cases, if you reference a nonexistent collection element, then PL/SQL raises a predefined exception. Consider the illustration shown b
Using EXTEND To enlarge the size of a collection, use EXTEND. This process has 3 forms. The EXTEND appends one null element to a collection. And the EXTEND(n) appends n null e
Due to an increase in overhead costs, the buying price of all items needs to be increased. Management wants to see a report before deciding how much each product will go up. Add to
Parameter & Keyword Description: function_name: The user-defined function is identifying by that keyword. parameter_name: This identifies the formal parameter that
CURRVAL and NEXTVAL The series is a schema object which generates the sequential numbers. Whenever you form a sequence, you can specify its primary value and an increment. T
Understanding Nested Tables Within the database, the nested tables can be considered as one-column database tables. The Oracle stores the rows of a nested table in no specific o
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