摘要:
1. 利用 to_number CREATE OR REPLACE FUNCTION isnumeric (str IN VARCHAR2) RETURN NUMBER IS v_str FLOAT; BEGIN IF str IS NULL THEN RETURN 0; ELSE ... 阅读全文
摘要:
Sys.Date( ) returns today's date. 显示当前日期date() returns the current date and time. 显示当前日期和时间# print today's datetoday <-Sys.Date()format(today, format= 阅读全文
摘要:
1.格式化输出整数python print也支持参数格式化,与C言的printf似,strHello = "the length of (%s) is %d" %(Hello World,len(Hello World))print strHello#输出果:the length of (Hello... 阅读全文