Understanding Oracle APEX 5 Application Development by Edward Sciore

Author:Edward Sciore
Language: eng
Format: epub, azw3
Publisher: Apress, Berkeley, CA

Comments

As in SQL, PL/SQL denotes comments with two consecutive minus signs. All characters following the two minus signs are ignored until the end of the line.

Assignment Statements

Assignment statements in PL/SQL use := as the assignment operator. Assignment can also be used in the declare section to assign an initial value to a local variable.

Conditional Statements

PL/SQL supports several forms of a conditional statement; the form appearing in Listing 7-7 is good for general-purpose use. Note that the keywords act as section boundaries: the conditional expression appears between if and then, the statements to be executed when the condition is true appear between then and else, and the statements to be executed when the condition is false appear between else and end if. As usual, if there are no statements between the else and end if keywords, the else keyword can be omitted.

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