tn029 002

Roc. cInt main (){Printf ("MASTER: 001 ″);Return 0;}[Rocrocket @ ABC rebase] $ git initInitialized empty git repository in/rocrocket/career/programming/Git-study/rebase/. Git/[Rocrocket @ ABC rebase] $ git add.[Rocrocket @ ABC rebase] $ git commit-M "master: 001 ″Created initial commit 2d89602: MASTER: 0011 files changed, 5 insertions (+), 0 deletions (-)Create mode 100644 Roc. c[Rocrocket @ ABC rebase] $ git logCommit 2d89602d0c99551_df0d2c023e447f5d98d863aAuthor: rocrocket Date:Mon Nov 17 15:

to introduce zookeeper, large changes to existing code) 4.redis+sentinel (Redis self-monitoring middleware) (small code changes, less configuration, and can meet the needs of dual-machine hot standby) Based on our current situation and requirements, after a brief comparison, our team decided to choose a fourth option Redis+sentinel to achieve dual-machine hot standby. preparatory work 1. Install redis-001 (main) $ wget http://download.redis.io/releases/redis-3.2.3.tar.gz $ tar xzf redis-3.2.3.t

50 commonly used test and interview SQL statements Postedon50 commonly used test and interview SQL statements 2009-12-1715: 05 Student (S #, Sname, Sage, Ssex) student table Course (C #, Cname, T #) Course list SC (S #, C #, score) Instructor table question: 1. query all students whose 001 course scores are higher than 002. 50 commonly used test and interview SQL statements Posted on 50 commonly used test, interview SQL statement Student (S #, Sname,

50 commonly used SQL statements Student (S #, Sname, Sage, Ssex) Student table Course (C #, Cname, T #) curriculum SC (S #, C #, score) exam table Teacher (T #, Tname) Instructor table questions: 1. query the student ID of all the students whose scores are higher than those of the 002 course; selecta. S # from (selects #, scorefromSCwhereC #001) 50 commonly used SQL statements Student (S #, Sname, Sage, Ssex) Student table Course (C #, Cname, T #) cur

all students whose score is higher than that of the "002" course; select a.S# from (select s#,score from SC where C#='001') a,(select s#,score from SC where C#='002') b where a.score>b.score and a.s#=b.s#;2. query the student ID and average score of students whose average score is greater than 60; select S#,avg(score) from sc group by S# having avg(score) >60;3. query the st

SQL database Interview Questions and answers (22:52:54) ReprintedBytes Summary of course number of three c courses by Ye Ping Category: Program World Student (S #, Sname, Sage, Ssex) Student table S #: Student ID; Sname: Student name; Sage: Student age; Ssex: Student genderCourse (C #, Cname, T #) curriculum C #, Course No.; Cname: Course name; T #: Instructor No.SC (S #, C #, score) Student table S #: Student ID; C #, course number; score: scoreTeacher (T #, Tname) Instructor table T #: Instruc

;db.collect.find ({ Example: [SQL]View PlainCopy >db.orders.find ({"onumber":"002"}) Find documents for ONUMBER=002 (2) comparison operators $GT (greater than), $GTE (greater than or equal to), $lt (less than), $lte (less than or equal to) Grammar: [SQL]View PlainCopy { 1) $gt (greater than) comparison operator Example: [SQL]View PlainCopy >db

Basic Database Operations, databasesI. Data Table Student (S #, Sname, Sage, Ssex) Student table S #: Student ID; Sname: Student name; Sage: Student age; Ssex: Student genderCourse (C #, Cname, T #) curriculum C #, Course No.; Cname: Course name; T #: Instructor No.SC (S #, C #, score) Student table S #: Student ID; C #, course number; score: scoreTeacher (T #, Tname) Instructor table T #: Instructor ID; Tname: Instructor name Ii. Basic operations:1. query the student ID of all students whose sc

Windbg DEBUG command 7 (! Runaway ,~) 1.! Runaway ! RunawayCommand to display the consumption time of each thread Bit 0 (0x1) enables the debugger to display the user time consumed by each thread. The default value 0x1 is not added. Bit 1 (0x2) shows the Kernel Time consumed by each thread ). Bit 2 (0x4) shows how long each thread has elapsed since its creation. Is the combination of the three: 1 2 3 4 5 6 7 0: 002>! Run

' b11_11111_11111_11111_11111,filter_din[8:0]}):({filter_din[9],22 ' d0,filter_din[8:0]});Assign filter_dout = filter_out[31]? ({filter_out[31],filter_out[24:16]}):({filter_out[31],filter_out[24:16]});////////////////////////////////////////////////////////////////Module Architecture:filter////////////////////////////////////////////////////////////////Local FunctionsType definitionsConstants Parameter coeff1 = "d530"; 0.008084538.0845306443242445E-003; DoubleParameter coeff2 = "d1418"; 0.02164

This text has been reprinted online, and some SQL statements are suitable for use in application systems. Some "reports" have a heavier feeling, mainly to review the former. This text has been reprinted online, and some SQL statements are suitable for use in application systems. Some "reports" are more likely to be used, mainly to review the former. 50 common SQL statements Student (S #, Sname, Sage, Ssex) Student table Course (C #, Cname, T #) Curriculum SC (S #, C #, score) Orders table Teac

50 SQL statements involved in one question Student (s #, sname, sage, ssex) Student tableCourse (C #, cname, T #) CurriculumSC (s #, C #, score) Orders tableTeacher (T #, tname) Instructor table Problem:1. query the student ID of all students whose score is higher than that of the "002" course;Select a. s # From (select s #, score from SC where C # = '001') A, (select s #, scoreFrom SC where C # = '002

50 Common SQL statements Student (s#,sname,sage,ssex) Student table Course (c#,cname,t#) timetable SC (s#,c#,score) score sheet Teacher (t#,tname) Teacher's Table Problem: 1, Query the "001" Course than "002" course scores of all students of the school number; Select a.s# from (select S#,score from SC where c#= ' 001 ') A, (select S#,score From SC where c#= ' 002 ') b where A.score>b.score and a.s#=b.s#;

"Hello!"(integer) 0 127.0.0.1:6379> hget myhash Field"Hello" ③hmset method Set multiple field of hash at the same time Cases Copy Code code as follows: 127.0.0.1:6379> hmset user:002 name Dee specialty PHP Ok 127.0.0.1:6379> hget user:002 Name"Dee." 127.0.0.1:6379> Hget user:002 Specialty"PHP" ④hget method Gets the spe

Student (s#,sname,sage,ssex) Student tableCourse (c#,cname,t#) timetableSC (s#,c#,score) score tableTeacher (t#,tname) Teacher tableProblem:1, the inquiry "001" course is higher than "002" of all students of the school number;Select a.s# from (select S#,score from SC where c#= ' 001 ') A, (select S#,scoreFrom SC where c#= ' 002 ') bwhere A.score>b.score and a.s#=b.s#;2, the query average score is more than

50 common SQL statementsStudent (S #, Sname, Sage, Ssex) Student tableCourse (C #, Cname, T #) CurriculumSC (S #, C #, score) Orders tableTeacher (T #, Tname) Instructor tableProblem:1. query the student ID of all students whose score is higher than that of the "002" course;Select a. S # from (select s #, score from SC where C # = '001') a, (select s #, scoreFrom SC where C # = '002') BWhere a. score> B. sc

50 SQL Query Techniques, query statement examples, 50 SQL statements Student (S #, Sname, Sage, Ssex) Student tableCourse (C #, Cname, T #) CurriculumSC (S #, C #, score) Orders tableTeacher (T #, Tname) Instructor tableProblem:1. query the student ID of all students whose score is higher than that of the "002" course;Copy codeThe Code is as follows:Select a. S # from (select s #, score from SC where C # = '001') a, (select s #, scoreFrom SC where C #

50 common SQL statements Student (S #, Sname, Sage, Ssex) Student tableCourse (C #, Cname, T #) CurriculumSC (S #, C #, score) Orders tableTeacher (T #, Tname) Instructor table Problem:1. query the student ID of all students whose score is higher than that of the "002" course;Select a. S # from (select s #, score from SC where C # = '001') a, (select s #, scoreFrom SC where C # = '002') BWhere a. score> B.

Student (s #, sname, sage, ssex) Student tableCourse (C #, cname, T #) CurriculumSC (s #, C #, score) Orders tableTeacher (T #, tname) Instructor table Problem:1. query the student ID of all students whose score is higher than that of the "002" course;Select a. s # From (select s #, score from SC where C # = '001') A, (select s #, scoreFrom SC where C # = '002') BWhere a. score> B. score and a. s # = B. S #

Student (s#,sname,sage,ssex) Student tableCourse (c#,cname,t#) timetableSC (s#,c#,score) score sheetTeacher (t#,tname) Teacher's TableProblem:1, Query the "001" Course than "002" course scores of all students of the school number; Copy Code code as follows: Select a.s# from (select S#,score from SC where c#= ' 001 ') A, (select S#,score From SC where c#= ' 002 ') b where A.score>b.score a