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MySQL Cannot Add Foreign Key Constraint
So I'm trying to add Foreign Key constraints to my database as a project requirement and it worked the first time or two on different tables, but I have two tables on which I get an error when trying to add the Foreign Key Constraints.
The error message that I get is:
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Javascript - remove an array item by value [duplicate]
...var tag_story = [1,3,56,6,8,90],
id_tag = 90,
position = tag_story.indexOf(id_tag);
if ( ~position ) tag_story.splice(position, 1);
P.S. For an explanation of that cool ~ tilde shortcut, see this post:
Using a ~ tilde with indexOf to check for the existence of an item in an array.
Not...
Cannot insert explicit value for identity column in table 'table' when IDENTITY_INSERT is set to OFF
I have the below error when I execute the following script. What is the error about, and how it can be resolved?
21 Answers...
Best way to use multiple SSH private keys on one client
...nt servers or different portions of the same server (my uses are system administration of server, administration of Git, and normal Git usage within the same server). I tried simply stacking the keys in the id_rsa files to no avail.
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Create a custom View by inflating a layout?
I am trying to create a custom View that would replace a certain layout that I use at multiple places, but I am struggling to do so.
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Using SSH keys inside docker container
I have an app that executes various fun stuff with Git (like running git clone & git push) and I'm trying to docker-ize it.
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Pythonic way to create a long multi-line string
I have a very long query. I would like to split it in several lines in Python. A way to do it in JavaScript would be using several sentences and joining them with a + operator (I know, maybe it's not the most efficient way to do it, but I'm not really concerned about performance in this stage, jus...
PostgreSQL Autoincrement
I'm switching from MySQL to PostgreSQL and was wondering how I can do autoincrement values. I saw in the PostgreSQL docs a datatype "serial", but I get syntax errors when using it (in v8.0).
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Node.js Mongoose.js string to ObjectId function
Is there a function to turn a string into an objectId in node using mongoose? The schema specifies that something is an ObjectId, but when it is saved from a string, mongo tells me it is still just a string. The _id of the object, for instance, is displayed as objectId("blah") .
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Update a table using JOIN in SQL Server?
I want to update a column in a table making a join on other table e.g.:
11 Answers
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