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Removing App ID from Developer Connection

... Update: You can now remove an App ID (as noted by @Guru in the comments). In the past, this was not possible: I had the same problem, and the folks at Apple replied that they will leave all of the App ID you create associated to your login, to keep track of a sort of hi...
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MySQL JOIN the most recent row only?

...d, customer_id FROM customer_data GROUP BY customer_id ) c_max ON (c_max.customer_id = c.customer_id) JOIN customer_data cd ON (cd.id = c_max.max_id) WHERE CONCAT(title, ' ', forename, ' ', surname) LIKE '%Smith%' LIMIT 10, 20; Note that ...
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DISTINCT for only one column

... ProductModel, ROW_NUMBER() OVER(PARTITION BY Email ORDER BY ID DESC) rn FROM Products ) a WHERE rn = 1 EDIT: Example using a where clause: SELECT * FROM ( SELECT ID, Email, ...
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SELECT DISTINCT on one column

... (SELECT ID, SKU, Product, ROW_NUMBER() OVER (PARTITION BY PRODUCT ORDER BY ID) AS RowNumber FROM MyTable WHERE SKU LIKE 'FOO%') AS a WHERE a.RowNumber = 1 share | ...
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Remove by _id in MongoDB console

In the MongoDB console how can I remove a record by id? Here's my collection : 11 Answers ...
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Optimal way to concatenate/aggregate strings

... SELECT ID, Name, ROW_NUMBER() OVER (PARTITION BY ID ORDER BY Name) AS NameNumber, COUNT(*) OVER (PARTITION BY ID) AS NameCount FROM dbo.SourceTable ), Concatenated AS ( SELECT ID, CAST(Name AS nvarchar) AS FullName, Name, ...
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mongodb group values by multiple fields

... is a "pipeline within a pipeline" where the inner content can be filtered by matches from the parent. Since they are both "pipelines" themselves we can $limit each result separately. This would be the next best option to running parallel queries, and actually would be better if the $match were allo...
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How to do a FULL OUTER JOIN in MySQL?

...Full Outer Join in MySQL. Is this possible? Is a Full Outer Join supported by MySQL? 15 Answers ...
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SQL select only rows with max value on a column [duplicate]

... At first glance... All you need is a GROUP BY clause with the MAX aggregate function: SELECT id, MAX(rev) FROM YourTable GROUP BY id It's never that simple, is it? I just noticed you need the content column as well. This is a very common question in SQL: find the...
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When should I use cross apply over inner join?

... TOP 3 * FROM t2 WHERE t2.t1_id = t1.id ORDER BY t2.rank DESC ) t2o It cannot be easily formulated with an INNER JOIN condition. You could probably do something like that using CTE's and window function: WITH t2o AS ( SELECT...