mysql-workbench

问题 I have a following query that unions two tables Table1 and Table 2 ResultSet res = st.executeQuery(" select user_id, movie_Id, movie_name, user_name, rating, genre from Table1 union all select t1.user_id, t2.movie_Id, t2.movie_name, t2.user_name, t2.rating, t2.genre from Table2 t2 join Table1 t1 on t2.user_name = t1.user_name;"); output-- 1 12 pianist vishal 7 action 2 4 titanic rajesh 7 action 3 5 snakes on a plane anuj 2 drama 4 9 oh my god arun 5 drama 5 9 jumanji vishal 8 fantasy 6 68 the

问题 This code do restore mysql tables but application almost goes into sleep(20min plus). and my database Routines do not come in mysql workbench, can somebody tell me what is the actual solution? public static boolean restoreDB(String dbName, String dbUserName, String dbPassword, String source) { String[] executeCmd = new String[]{"C:\\Program Files\\MySQL\\MySQL Server 5.5\\bin\\mysql", "--user=" + dbUserName, "--password=" + dbPassword, "-e", "source \"D:/khokher/mydb.sql\""}; Process

问题 I'm working on MySQL Workbench Version 6.1 (6.1.4.11773 build 1454). I see too bugs in Workbench. But there are issue only on using gui. There are no bug or issue with codes, query so manually. I cant change auto increment with checkbox of alter table. But i can change with codes. I can't set foreign key without codes. There is a checkbox issue of setting foreign key referenced column. But I can set same foreign key with codes. And When I set a Datatype look like "INT(11)", It's working but

问题 I have two tables one is retailer table and other is visit master table. In retailer table all the shops are stored and in visit master those shops are mentioned in which user has visited. So I want to fetch those retailers shop in which he has not visited for last ten days whether shops are from both tables in visit master those shops in which he has visited and there are some shops in which he has not visited till now which we get from retailer table. created date column is from retailer

问题 I am using MySQL workbench 8.0 . I am trying to implement a nested query for the following query which is working. I am trying to avoid the create table command. However it is showing the error.( Select is not valid at this position for this server version, expecting '(', with ) The executable query is create table recent as select f.member_id,f.fill_date,f.insurancepaid, p.member_first_name,p.member_last_name,d.drug_name, row_number() over (partition by p.member_id order by f.fill_date desc)

问题 I have a wide table with 210 columns (This might be a bad structure but all data is needed every time). There is a primary type index for the primary key. Now when I do select * from my single table without any condition. It results in a full table scan. It says the following: no useable indexes were found for the table This also means the search range is so broad that the index is useless. What could I do to avoid this full table scan? Note: I need all the information every time so breaking

问题 I'm trying to execute the sql query: INSERT INTO celebrity (name, `1`, `15`, `3`, `20`, `4`, `13`, `35`, `22`, `6`, `19`) VALUES ("Keith Allen", 1, 1, 1, 1, 1, -1, -1, -1, -1, 1) which worked fine in the workbench and correctly added the new row, however when I call the same query from java using the executeUpdate(String query) method, I get a sql syntax error 回答1: You need to escape your double quotes like this: INSERT INTO celebrity (name, `1`, `15`, `3`, `20`, `4`, `13`, `35`, `22`, `6`,

问题 I have seen a lot of posts that claim they are running an RDS instance of MySql in which they cannot connect to, but I am not running RDS. I used my EC2 insance to host my wordpress blog which was installed using the Web Platform Installer. This setup the wordpress schema and data that I needed and I have been running it for a couple years. I want to be able to access this database remotely instead of only logging into my server. I have checked and have the following users root wpadmin I have

问题 My table looks like as follows; (I populated it from excel) I want to extract some data from another table so I use sql joins. Since my column contains comma separated values, i try to use join with Or but no success. Is this right way to do joins? I look for quick solution for this comma separated columns. eg: SELECT * FROM test.types as a inner join test.`matric as ma on (a.category= SUBSTRING_INDEX(ma.`Function Code AA`,',',1) or a.category= SUBSTRING_INDEX(ma.`Function Code AA`,',',2) or

问题 In one of my previous question, I have asked solution for resolving mysql 1235 error: Error Code: 1235. This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery' Following will throw 1235 : DELETE FROM job_detail_history where id not in (select id from job_detail_history order by start_time desc limit 2); For that i got the solution which is given by @Zaynul Abadin Tuhin as follows and it works for me too. He just added one single select layer over my subquery. and as per