之前数据量少的时候,用:select wm_concat(字段) from 表 拼接数据量小的话,没有问题,数据量超出4000个就会爆以下错误信息: 解决方法(Oracle 函数xmlagg拼接): 语法格式:SELECT xmlagg(xmlparse(content 合并字段||’,’ wellformed) order by 排序字段).getclobval() FROM 表名 效果图: select xmlagg(xmlparse(content SECTION_NO||',' well
题目描述 Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique longest palindromic substring. 即给定一个字符串,返回该字符串最长的回文子串 如给出"acabcddcbadike",返回"abcddcba"
题目描述 Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique longest palindromic substring. 即给定一个字符串,求它的最长回文子串的长度(或者最长回文子串). 解法一 对于一个问题,一定可以找到一个傻的可爱的暴力解法,本题的暴力解法即
有些时候,有些作业遇到问题执行时间过长,因此我写了一个脚本可以根据历史记录,找出执行时间过长的作业,在监控中就可以及时发现这些作业并尽早解决,代码如下: SELECT sj.name , sja.start_execution_date,DATEDIFF (SECOND ,sja.start_execution_date,GETDATE() ) AS ExecutedMin,ja.AvgRuntimeOnSucceed FROM msdb.dbo.sysjobactivity AS
Given a string that consists of only uppercase English letters, you can replace any letter in the string with another letter at most k times. Find the length of a longest substring containing all repeating letters you can get after performing the abo
Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note: Assume the leng