摘要:
show processlist;show processlist\G;SHOW FULL PROCESSLIST;SHOW FULL PROCESSLIST\G;REF:http://dev.mysql.com/doc/refman/5.7/en/show-processlist.htmlhttp 阅读全文
摘要:
?unlist Given a list structure x, unlist simplifies it to produce a vector which contains all the atomic components which occur in x.unlist(v.row)[1] 阅读全文
摘要:
Generate a random number between 5.0 and 7.5x1 <- runif(1, 5.0, 7.5) # 参数1表示产生一个随机数x2 <- runif(10, 5.0, 7.5)# 参数10表示产生10个随机数Generate a random integer 阅读全文
摘要:
############################################ INSTALLMENT############################################ try http:// if https:// URLs are not supportedsou 阅读全文