nvl in oracle 在 Oracle DECODE vs. NVL - Stack Overflow 的評價 NVL replaces NULL by specified value. DECODE replaces any specified value by desired value and can be chained. Your usage is equivalent, ... ... <看更多>
nvl in oracle 在 NVL v/s Check IS NULL - DBA StackExchange 的評價 I'm not sure why nvl should be better than is null, except it is an oracle function(not available on other dbms). ... <看更多>
