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How can I get the current user's username in Bash?
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@BillMan, what does that even mean? Could you provide an example?
– Dejay Clayton
Nov 18 '15 at 16:06
17
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SQL query to find record with ID not in another table
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Try this
SELECT ID, Name
FROM Table1
WHERE ID NOT IN (SELECT ID FROM Table2)
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Implementing Comments and Likes in database
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Entity-relationship term for this is "category" (see the ERwin Methods Guide, section: "Subtype Relationships"). The category symbol is:
Assuming a user can like multiple entities, a same tag can be used for more than one entity but a comment is entity-specific, your model could look like this:...
What are best practices for multi-language database design? [closed]
...ble for a specified language.
Example:
Table "Product":
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ID : int
<any other language-neutral fields>
Table "ProductTranslations"
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ID : int (foreign key referencing the Product)
Language : varchar (e...
MySQL COUNT DISTINCT
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Select
Count(Distinct user_id) As countUsers
, Count(site_id) As countVisits
, site_id As site
From cp_visits
Where ts >= DATE_SUB(NOW(), INTERVAL 1 DAY)
Group By site_id
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How to change max_allowed_packet size
...on. He made a mistake of putting it at the bottom of the file first so it did not work.
6) Control + O (save) then ENTER (confirm) then Control + X (exit file)
7) service mysqld restart
8) You can check the change in the variables section on phpmyadmin
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What is the difference between JOIN and UNION?
...er, then the data from the first table is shown in one set of column alongside the second table’s column in the same row.
Unions combine data into new rows. If two tables are “unioned” together, then the data from the first table is in one set of rows, and the data from the second table in a...
What is the best way to auto-generate INSERT statements for a SQL Server table?
...encounter Cyclic dependencies found error, switch to Schema and data to avoid the error. Happens in Management Studio v17.
– Endy Tjahjono
Sep 6 '17 at 10:50
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Rails params explained?
... Rails has a special syntax for making the params be a hash with hashes inside. For example, if the user's browser requested
http://www.example.com/?vote[item_id]=1&vote[user_id]=2
then params[:vote] would be a hash, params[:vote][:item_id] would be "1" and params[:vote][:user_id] would be "2...
How to access parent scope from within a custom directive *with own scope* in AngularJS?
... above, etc. I'm totally willing to bend over backwards, but I want to avoid something totally hacky or unmaintainable. For example, I know I could do it right now by taking the $scope from the preLink parameters and iterating over it's $sibling scopes to find the conceptual "parent".
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