decode() : decode(column,'0'.'male','1','female','unknown')
When the column value is 0, it becomes male, when it is 1, it becomes female, and other values are
unknown It is so wrong. . . .
nvl() : nvl(colunmn,1)
When the column is null, the value is 1
floor() : floor(3.14) returns 3, rounded down, minus the decimal
to_date():
to_char()
Oracle commonly used functions
Guess you like
Origin http://43.154.161.224:23101/article/api/json?id=326426687&siteId=291194637
Recommended
Ranking