select to_char(wm_concat(ssss)) from (select replace(C_CELL_CONTENT ,'=$','') ssss ,rownum ss from ( select distinct C_CELL_CONTENT,1 sss from T_F_RC_REP_TBCELL where C_CELL_CONTENT like '=$%"%')) splitstr和wm_concat()的用法 select distinct * from table(…
namespace Test { using Newtonsoft.Json; using System; using System.Collections.Generic; using System.IO; using System.Linq; using Microshaoft; using Newtonsoft.Json.Linq; class Program { static void Main(string[] args) { string json = @" },{a:'@a.[2]…
两种方式Range和ROI #include <opencv2/opencv.hpp> using namespace std; using namespace cv; void testrange(Mat &img) { int m = img.rows; int n = img.cols; Mat temp = img(Range(,m*,n*0.8)); namedWindow("Range"); imshow("Range", temp)…
1.查询Student表中的所有记录的Sname.Ssex和Class列. SQL:select sname,ssex,class from Students linq:from s in Students select new{s.sname,s.ssex,s.class} lambda:Students.select(s=>new{sname=s.sname,ssex=s.ssex,class=s.class}) 2.查询教师所有的单位即不重复的Depart列. SQL:select dis…
using FluentData; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Test { class Program { static void Main(string[] args) { //新增 , ).ExecuteReturnLastId<int>(); var insert…
