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Change values while iterating

Let's suppose I have these types: 4 Answers 4 ...
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Is an index needed for a primary key in SQLite?

When an integer column is marked as a primary key in an SQLite table, should an index be explicitly created for it as well? SQLite does not appear to automatically create an index for a primary key column, but perhaps it indexes it anyway, given its purpose? (I will be searching on that column all t...
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Store print_r result into a variable as a string or text

If I use print_ r or var_dump it displays the result on the screen, but I want this data to be stored in a variable so that I can write it to a file. ...
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Character Limit in HTML

How do you impose a character limit on a text input in HTML? 6 Answers 6 ...
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Guid.NewGuid() vs. new Guid()

What's the difference between Guid.NewGuid() and new Guid() ? 4 Answers 4 ...
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SQL function as default parameter value?

I tried changing a default parameter value with this: 6 Answers 6 ...
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How to add Active Directory user group as login in SQL Server

I have a .net application which is connecting to the SQL Server using windows authentication. 4 Answers ...
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how to listen to N channels? (dynamic select statement)

to start an endless loop of executing two goroutines, I can use the code below: 5 Answers ...
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How to delete a record in Django models?

I want to delete a particular record. Such as 5 Answers 5 ...
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Alter column, add default constraint

I have a table and one of the columns is "Date" of type datetime. We decided to add a default constraint to that column 6 ...