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  • Author: B D

    This author has written 574 articles
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    2. B D>
    3. Page 7

    PL/SQL – Nested IF-THEN-ELSE Statements

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
    • Post comments:0 Comments

    It is always legal in PL/SQL programming to nest the IF-ELSE statements, which means you can use one IF or ELSE IF statement inside another IF or ELSE IF statement(s). Syntax IF( boolean_expression 1)THEN    -- executes when the boolean expression…

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    PL/SQL – Searched CASE Statement

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
    • Post comments:1 Comment

    The searched CASE statement has no selector and the WHEN clauses of the statement contain search conditions that give Boolean values. Syntax The syntax for the searched case statement in PL/SQL is āˆ’ CASE…

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    PL/SQL – CASE Statement

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
    • Post comments:0 Comments

    Like the IF statement, the CASE statement selects one sequence of statements to execute. However, to select the sequence, the CASE statement uses a selector rather than multiple Boolean expressions. A selector is an expression, the…

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    PL/SQL – IF-THEN-ELSIF Statement

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
    • Post comments:0 Comments

    TheĀ IF-THEN-ELSIFĀ statement allows you to choose between several alternatives. AnĀ IF-THENĀ statement can be followed by an optionalĀ ELSIF...ELSEĀ statement. TheĀ ELSIFĀ clause lets you add additional conditions. When usingĀ IF-THEN-ELSIFĀ statements there are a few points to keep…

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    PL/SQL – IF-THEN-ELSE Statement

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
    • Post comments:1 Comment

    A sequence ofĀ IF-THENĀ statements can be followed by an optional sequence ofĀ ELSEĀ statements, which execute when the condition isĀ FALSE. Syntax The syntax for the IF-THEN-ELSE statement is āˆ’ IF condition THEN    S1; …

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    PL/SQL – IF-THEN Statement

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
    • Post comments:1 Comment

    It is the simplest form of the IF control statement, frequently used in decision-making and changing the control flow of the program execution. The IF statement associates a condition with a sequence of statements…

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    PL/SQL – Conditions

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
    • Post comments:0 Comments

    In this chapter, we will discuss conditions in PL/SQL. Decision-making structures require that the programmer specify one or more conditions to be evaluated or tested by the program, along with…

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    PL/SQL – Operators Precedence

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
    • Post comments:1 Comment

    Operator precedence determines the grouping of terms in an expression. This affects how an expression is evaluated. Certain operators have higher precedence than others; for example, the multiplication operator has…

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    Logical Operators in PL/SQL

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
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    The following table shows the Logical operators supported by PL/SQL. All these operators work on Boolean operands and produce Boolean results. Assume variable A holds true and variable B holds…

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    PL/SQL – Comparison Operators

    • Post author:B D
    • Post published:August 23, 2021
    • Post category:PL/SQL
    • Post comments:0 Comments

    Comparison operators are used for comparing one expression to another. The result is always eitherĀ TRUE, FALSE,Ā orĀ NULL. OperatorDescriptionExampleLIKEThe LIKE operator compares a character, string, or CLOB value to a pattern and…

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