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2年10月18天

ORACLE IS 和 AS 用法

在存储过程(PROCEDURE)和函数(FUNCTION)中没有区别,在视图(VIEW)中只能用AS不能用IS,在游标(CURSOR)中只能用IS不能用AS。一般存储过程头部用as 主体用is其他情况下都用as就不会有问题

windows编译qtav

error: avutil is required, but compiler can not find it.You should set some environment vars so that compiler can find FFmpeg and other libraries files.For VC compiler, they are INCLUDE and LI

LeetCode 27. Remove Element

Description:Given an array nums and a value val, remove all instances of that value in-place and return the new length.Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory.The or