alias

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I get external .pem files that need to be converted to .p12 files - I add a username and password in the process. (I need to do this to utilize a third party API.) Using openssl , the command is... openssl pkcs12 -export -in xxxx.pem -inkey xxxx.pem -out xxx.p12 -passout pas:newpassword -name "newname" I can run this from a terminal session and it works perfectly. However, I will need to do this often and have written a Java class that handles this and more (my application is mostly .jsp with Tomcat and Apache). When I try run the same

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I get the error ERROR 1066 (42000): Not unique table/alias: I cant figure out whats wrong with it. 回答1: Try SELECT pa.ProjectID, p.Project_Title, a.Account_ID, a.Username, a.Access_Type, c.First_Name, c.Last_Name FROM Project_Assigned pa INNER JOIN Account a ON pa.AccountID = a.Account_ID INNER JOIN Project p ON pa.ProjectID = p.Project_ID INNER JOIN Clients c ON a.Account_ID = c.Account_ID WHERE a.Access_Type = 'Client'; 回答2: select persons.personsid,name,info.id,address -> from persons -> inner join persons on info.infoid = info.info.id;

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I need to alias when I do a Laravel eager loading: $posts = Post::with(array('images as main_image' => function($query) // do not run { $query->where('number', '=', '0'); })) ->where('id', '=', $id) ->get(); return Response::json($posts); I need to to this because I want the JSON response like this: [ { "id": 126, "slug": "abc", "name": "abc", "created_at": "2014-08-08 08:11:25", "updated_at": "2014-08-28 11:45:07", "**main_image**": [ { "id": 223, "post_id": 126 ... } ] } ] It is possible? 回答1: Perfect! you give me the idea. Finally I've

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am not sure if the long work is doing this to me but I am seeing some unexpected behavior in spark 2.2.0 I have created a toy example as below toy_df = spark . createDataFrame ([ [ 'p1' , 'a' ], [ 'p1' , 'b' ], [ 'p1' , 'c' ], [ 'p2' , 'a' ], [ 'p2' , 'b' ], [ 'p2' , 'd' ]], schema =[ 'patient' , 'drug' ]) I create another dataframe mdf = toy_df . filter ( toy_df . drug == 'c' ) as you know mdf would be mdf . show () +-------+----+ | patient | drug | +-------+----+ | p1 | c | +-------+----+ Now If I do this toy_df . join ( mdf ,[

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm making a game, and I'm using midi files for the background music. Here's the code I'm currently using: void Game :: play_music () { // Start the music: if ( map . levelnumber % 2 == 0 ) { mciSendString ( L "open MUSIC01.MID type sequencer alias Music1" , NULL , 0 , NULL ); mciSendString ( L "play Music1" , NULL , 0 , NULL ); playing = "Music1" ; } else { mciSendString ( L "open MUSIC02.MID type sequencer alias Music2" , NULL , 0 , NULL ); mciSendString ( L "play Music2" , NULL , 0 , NULL ); playing = "Music2" ; } } This works

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Just recently I have had a problem with a key store. I know there are plenty of questions about this problem already. I have read them all and Googled furiously. Error: keytool error: java.io.IOException: Keystore was tampered with, or password was incorrect java.io.IOException: Keystore was tampered with, or password was incorrect at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:772) at sun.security.provider.JavaKeyStore$JKS.engineLoad(JavaKeyStore.java:55) at java.security.KeyStore.load(KeyStore.java:1214) at sun.security

I want to delete rows from a SQL Server 2000/2005 table variable based on the presence of other rows in the same table (delete all 0 count rows if a non-0 count row exists with the same date). Here is a simplified example that should only delete the row added first: declare @O table ( Month datetime, ACount int NULL ) insert into @O values ('2009-01-01', 0) insert into @O values ('2009-01-01', 1) insert into @O values ('2008-01-01', 1) insert into @O values ('2007-01-01', 0) delete from @O o1 where ACount = 0 and exists (select Month from @O o2 where o1.Month = o2.Month and o2.ACount > 0) The

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: What's wrong with this query (running in hive): SELECT count(*) TotalCount, b.region_code from XXX a INNER JOIN YYY b ON a.uid=b.uid where a.dt = '2015-04-15' group by b.region_code order by b.region_code I think it should be pretty straightforward, but am getting this: FAILED: SemanticException [Error 10004]: Line 6:32 Invalid table alias or column reference 'b': (possible column names are: _col0, _col1) Here is the YYY table: hive> desc YYY; OK status_code int uid string zip_code string keyword string region_code bigint dt timestamp

java的dao层接口 public interface WorkerMapper extends Mapper < Worker > { } xml映射文件 <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> < mapper namespace = "com.jjs.kaiwen.dao.WorkerMapper" > < resultMap id = "BaseResultMap" type = "com.jjs.kaiwen.model.Worker" > <!-- WARNING - @mbggenerated --> < id column = "id" jdbcType = "INTEGER" property = "id" /> < result column = "worker_id" jdbcType = "VARCHAR" property = "workerId" /> < result column = "name" jdbcType = "VARCHAR" property = "name" /> < result