In this example, if the deptno column has a 10 in it, the SQL query will return the value accounting rather than the number 10. If the deptno is not 10, 20, 30, or 40, then the CASE statement will fall through t
Like the simpleCASEexpression, the searched case expression also uses short-circuit evaluation. Searched CASE expression example# When using the searchedCASEexpression within aSELECTstatement, you can replace values in the result based on comparison values. The following example uses the searchedCASEexpre...
Simple CASE statement example The following example compares single value (c_grade) with many possible values ‘A’, ‘B’,’C’,’D’, and ‘F’: DECLARE c_grade CHAR( 1 ); c_rank VARCHAR2( 20 ); BEGIN c_grade := 'B'; CASE c_grade WHEN 'A' THEN c_rank := 'Excellent' ...
CASE expression syntax is similar to an IF-THEN-ELSE statement. Oracle checks each condition starting from the first condition (left to right). When a particular condition is satisfied (WHEN part) the expression returns the tagged value (THEN part). If none of the conditions are matched, the...
position or by keywords.An exampleofthe formercaseis 'sqlldr scott/tiger foo'; an example of the latter is 'sqlldr control=foo userid=scott/tiger'.One may specify parameters by position before but not after parameters specified by keywords.For example,'sqlldr scott/tiger control=foo logfile=lo...
public CaseStatement.WhenThen() CaseStatement.WhenThenpublic CaseStatement.WhenThen(SQLFragment condition, SQLFragment result) ... WHEN condition THEN result ...Method DetailsetWhenExpressionpublic void setWhenExpression(SQLFragment whenExpression) get...
dbkedDefDump():Starting a non-incident diagnosticdump(flags=0x0,level=3,mask=0x0)---Error Stack Dump---CurrentSQLStatementforthissession(sql_id=0wjycn5zghkkh)---select*from err 4.3 Call Stack 这里为一些内存里面的内容,看不懂~ 一般为Oracle官方或...
When requesting the entire result set, do it sparingly and in very specific use cases. For example, when you want to approximate a file download for the contents of an entire table. But even in this case, we recommend you exercise extreme caution. If possible, paginate with larger page siz...
When ERP is properly deployed at this automotive manufacturing company, a component, for example, “front brake pads,” is uniformly identified by part name, size, material, source, lot number, supplier part number, serial number, cost, and specification, along with a plethora of other descripti...
You complete them withend case(instead of justend) Eachthen/elseclause contains a statement, rather than returning a value For example, you could write a statement that assigns grade letters and pass/fail outcomes to variables: Functionally these are similar to a series if-elsif statements i...