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How to implement a many-to-many relationship in PostgreSQL?
...s using serial primary key columns
Auto increment table column
https://www.2ndquadrant.com/en/blog/postgresql-10-identity-columns/
I highly recommend that, because the name of a product is hardly unique (not a good "natural key"). Also, enforcing uniqueness and referencing the column in foreign key...
Determining whether jQuery has not found any element
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answered May 20 '10 at 20:46
futuraprimefuturaprime
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How to use CSS to surround a number with a circle?
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452
Here's a demo on JSFiddle and a snippet:
.numberCircle {
border-radius: 50%;
widt...
C# “as” cast vs classic cast [duplicate]
...ssigned a null value. That use to only mean reference types, but when .NET 2.0 came out, it introduced the concept of a nullable value type. Since these types can be assigned a null value, they are valid to use with the as operator.
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How do I access call log for android?
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SMR
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answered Jul 22 '11 at 7:33
Abhinav Singh MauryaAb...
Can I prevent the Firefox developer tools network panel from clearing on page reload?
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answered Jun 24 '14 at 18:12
wbambergwbamberg
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Using Linq to group a list of objects into a new grouped list of list of objects
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answered Apr 23 '10 at 8:50
LeeLee
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What's the difference between a catalog and a schema in a relational database?
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Builder Pattern in Effective Java
...ective Java by Joshua Bloch. I found the idea of the Builder pattern [Item 2 in the book] really interesting. I tried to implement it in my project but there were compilation errors. Following is in essence what I was trying to do:
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SQL Server: Database stuck in “Restoring” state
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