DECODE is considered the most powerful function in Oracle. Oracle 8i release introduced the CASE expression. The CASE expression can do all that DECODE does plus lot of other things including IF-THEN analysis,
A case expression can contain several when-then pairs. This allows for multiple conditions even without nesting—unlike the ?: operator in other programming languages. On the other hand, nesting provides an inherent precedence among the conditions. A flat case expression does not have such an inhe...
WHENclause contains a search condition that yields a BOOLEANvalue, so you can test different variables or multiple conditions in a singleWHENclause. Example 2-27 Using a Search Condition With a CASE Statement DECLARE grade CHAR(1) := 'B'; appraisal VARCHAR2(120); id NUMBER := 8429862; att...
CASE WHEN condition_1 THEN statements_1 WHEN condition_2 THEN statements_2 ... WHEN condition_n THEN statements_n [ ELSE else_statements ] END CASE;] Code language: PostgreSQL SQL dialect and PL/pgSQL (pgsql) The searched CASE statement follows the rules below: The conditions in the WHEN...
OracleCASEexpression allows you to addif-elselogic to SQL statements without calling aprocedure. TheCASEexpression evaluates a list of conditions and returns one of the multiple possible results. You can use aCASEexpression in any statement or clause that accepts a valid expression. For example, ...
type_1=np.select(conditions,choices,default='C')score_type_1numpy select方法类似case when语法，...
WHENclause contains a search condition that yields a BOOLEANvalue, so you can test different variables or multiple conditions in a singleWHENclause. Example 2-27 Using a Search Condition With a CASE Statement DECLARE grade CHAR(1) := 'B'; ...
Oracle Cloud ERP helps finance teams respond quickly to fast-changing business conditions. It also supports collaboration within the application suite for instant data sharing and problem solving and offers built-in, standardized best practices that encourage process efficiency. With Oracle Cloud ERP, yo...
CASE condition WHEN condition value THEN statement ELSE additional statement; Example We can use CASE to evaluate multiple conditions for a single variable, “job_id.” If “job_id” is “ACCOUNT,” the salary increase is 10%; if “job_id” is “IT_PROG,” the salary inc...
Test oracle- A procedure that determines whether a given test execution of the system-under-test is correct or not[29]. A test oracle may be specified, derived, implicit, or human. In light of these definitions, test case generation may be described as the process by which a test suite ...