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How can I join multiple SQL tables using the IDs?

...ableB.*, TableC.*, TableD.* FROM TableA JOIN TableB ON TableB.aID = TableA.aID JOIN TableC ON TableC.cID = TableB.cID JOIN TableD ON TableD.dID = TableA.dID WHERE DATE(TableC.date)=date(now()) In your example, you are not actually including TableD. All you have...
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EntityType has no key defined error

...ifferent things can cause this error. In my case, I mistakenly marked my "Id" field "private" instead of "public" (a habit from Java/JPA). Larry Raymond's response below is arguably the "best" reply to this question. It lists most of the common scenarios behind "EntityType has no key defined erro...
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How to remove array element in mongodb?

... Try the following query: collection.update( { _id: id }, { $pull: { 'contact.phone': { number: '+1786543589455' } } } ); It will find document with the given _id and remove the phone +1786543589455 from its contact.phone array. You can use $unset to unset the value i...
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Single controller with multiple GET methods in ASP.NET Web API

...following routes to your WebApiConfig: routes.MapHttpRoute("DefaultApiWithId", "Api/{controller}/{id}", new { id = RouteParameter.Optional }, new { id = @"\d+" }); routes.MapHttpRoute("DefaultApiWithAction", "Api/{controller}/{action}"); routes.MapHttpRoute("DefaultApiGet", "Api/{controller}", new ...
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Copying files from host to Docker container

...cp mycontainer:/foo.txt foo.txt For emphasis, mycontainer is a container ID, not an image ID. Multiple files contained by the folder src can be copied into the target folder using: docker cp src/. mycontainer:/target docker cp mycontainer:/src/. target Reference: Docker CLI docs for cp In Do...
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SQL Server Output Clause into a scalar variable

... You need a table variable and it can be this simple. declare @ID table (ID int) insert into MyTable2(ID) output inserted.ID into @ID values (1) share | improve this answer | ...
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How to Store Historical Data

...e exact same fields as FOO with the exception of an auto-incrementing HIST_ID. Every time FOO is updated, I perform an insert statement into FOO_Hist similar to: insert into FOO_HIST select * from FOO where id = @id . ...
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SQL “select where not in subquery” returns no results

...L: SELECT * FROM common LEFT JOIN table1 t1 ON t1.common_id = common.common_id WHERE t1.common_id IS NULL NOT EXISTS: SELECT * FROM common WHERE NOT EXISTS ( SELECT NULL FROM table1 t1 WHERE t1.common_id = common.common_id ) ...
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Where can I find my Facebook application id and secret key?

In my Facebook account, where can I find these application IDs, secret key, all? 7 Answers ...
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Javascript : Send JSON Object with Ajax?

... json_decode(file_get_contents('php://input')); – David Oct 22 '17 at 8:28 Dear friends can you share this POST ajax w...