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Parameter and Keyword Description:
record_type_name:
This identifies the user-defined type specifier that is used in the subsequent declarations of the records.
NOT NULL:
This constraint prevents the assigning of the nulls to the field. At the run time, trying to assign the null to a field, defined as NOT NULL raises the predefined exception VALUE_ ERROR. The constraint NOT NULL should be followed by an initialization clause.
datatype:
The datatype is a type specifier.
:= | DEFAULT:
This keyword or operator allows you to initialize the fields to the default values.
expression:
This is a indiscriminately complex combination of the constants, variables, literals, operators, & function calls. The easiest expression consists of a single variable. When the declaration is explained, the value of the expression is assigned to the field. The value and the field should have the compatible datatypes.
When Are Constraints Checked Under the model constraints are conceptually checked at all statement boundaries (and only at statement boundaries). By default the same is true
Comparison Operators The Comparison operators can compare one expression to another. The outcome is always true, false, or null. Usually, you use a comparison operators in condi
Row Operators The Row operators return or reference the particular rows. ALL retains the duplicate rows in the result of a query or in an aggregate expression. The DISTINCT el
Demonstrate your knowledge of PL/SQL programming by writing and thoroughly testing triggers and stored procedures associated with an e-commerce application that provides security l
Entering and Exiting If you enter the executable part of an autonomous routine, the major transaction suspends. When you exit the routine, the major transaction resumes. To ex
IN Operator The operator IN tests the set membership. This means "equal to any member of." The set may have nulls, but they are ignored. For illustration, the statement below do
Keyword & Parameter Description: WHEN: This keyword introduces the exception handler. You can have many exceptions execute the similar sequence of the statements by follo
Create a procedure named STATUS_SHIP_SP that allows a company to employee in the Shipping Department to update the status of an order to add shipping information. The BB_BASKETSTAT
Scoping Within the similar scope, all the declared identifiers should be unique. So, even if their datatypes differ, the variables and parameters cannot share the similar name.
Package Body: The package specification is implemented by the package body. That is, the package body has the definition of every cursor and the subprogram declared in the pac
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