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from table(f_carat_issues_as_of('31/MAR/2013')) i. inner join v_gcrs_with_stream gcrs on i.segment_id = gcrs.segment_id. where UPPER(ISSUE_STATUS) like '%OPEN%'. Now I want to call two columns: ISSUE_DIVISION and ISSUE_DIVISION_2.
7 gru 2023 · If you want to do if-else-then logic in select, where or anywhere else in a statement, you need a case expression. This is a series of when clauses that the database runs in order:
The database checks if EXAM_ID is equal to any of the values in the WHEN clauses. If EXAM_ID is, the corresponding string is returned. If no matches, the CASE expression returns null.
If a boolean_expression is evaluated and its value is TRUE, the statements after the corresponding THEN run. The succeeding expressions are not evaluated, and the statements associated with them do not run. ELSE. If no boolean_expression has the value TRUE, the statements after ELSE run.
In a simple CASE expression, Oracle Database searches for the first WHEN... THEN pair for which expr is equal to comparison_expr and returns return_expr. If none of the WHEN... THEN pairs meet this condition, and an ELSE clause exists, then Oracle returns else_expr. Otherwise, Oracle returns null.
Oracle CASE expression allows you to add if-else logic to SQL statements without having to call a procedure. The CASE expression evaluates a list of conditions and returns one of the multiple possible results. You can use a CASE expression in any statement or clause that accepts a valid expression.
28 cze 2024 · Allows one or more IF-THEN or IF-THEN-ELSIF statement inside another IF-THEN or IF-THEN-ELSIF statement (s). Mainly used in nested condition situation. In this Oracle PL/SQL tutorial, we will learn Decision-Making Statements like If-Then, If-Then-Else, If-Then-Elsif, Nested-If.
