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ExecuteReader requires an open and available Connection. The connection's current state is Connectin

...would be smart to encapsulate ADO.NET functionality into a DB-Class(me too 10 years ago). Mostly they decide to use static/shared objects since it seems to be faster than to create a new object for any action. That is neither a good idea in terms of peformance nor in terms of fail-safety. Don't po...
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Throw away local commits in Git

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Difference between “managed” and “unmanaged”

... 191 Managed Code Managed code is what Visual Basic .NET and C# compilers create. It runs on the C...
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PHP case-insensitive in_array function

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How to code a BAT file to always run as admin mode?

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How do I install pip on macOS or OS X?

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What is the 'CLSCompliant' attribute in .NET?

... 183 You mark classes with the CLSCompliant attribute when you want to make sure it can be used by ...
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Position Absolute + Scrolling

...ss: .inner: { position: relative; height: auto; } .full-height: { height: 100%; } Setting the inner div's position to relative makes the absolutely position elements inside of it base their position and height on it rather than on the .container div, which has a fixed height. Without the inner, r...
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Calendar.getInstance(TimeZone.getTimeZone(“UTC”)) is not returning UTC time

... 148 The System.out.println(cal_Two.getTime()) invocation returns a Date from getTime(). It is the ...
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How can I get column names from a table in Oracle?

... 192 You can query the USER_TAB_COLUMNS table for table column metadata. SELECT table_name, column...