在ORDER BY子句中使用CASE表达式将所有组合列入白名单。当条件不匹配时，CASE表达式将返回NULL，并且所有行...
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 to the ELSE clause, which will return unassigned. Note that with a s...
The searchedCASEstatement has the following syntax: The searchedCASEexpression evaluates the Boolean expression (e1, e2, …) in eachWHENclause in the order that the Boolean expressions appear. It returns the result expression (r) of the first Boolean expression (e) that evaluates to true. ...
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...
This Oracle tutorial explains how to use the Oracle / PLSQL CASE statement with syntax and examples. The Oracle / PLSQL CASE statement has the functionality of an IF-THEN-ELSE statement. Starting in Oracle 9i, you can use the CASE statement within a SQL
newInstance(); Statement stmt = null; ResultSet rs=null; String oraUrl="jdbc:oracle:thin:@127.0.0.1:1521:orcl"; String oraUser="TEST"; String oraPWD="123456"; try { DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver()); }catch (SQLException e) { out.print("filed!!"); }...
|2|BITMAPCONVERSIONCOUNT||86565|5(0)|00:00:01||3|BITMAPINDEXFASTFULLSCAN|IDX_BITM_T_STATUS|||---Note---dynamic sampling usedforthisstatement(level=2)
By default, Oracle checks content as well as casing, while comparing the two strings in "where" or "like" or "case" statements. For example, the statement given below will return 0. SELECT CASE WHEN 'abc'='ABC' THEN 1 ELSE 0 END AS MATCHED FROM DUAL; ...
Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense. Modifications: Any modifications made to this device that are not approved by Oracle may void the authority granted ...
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