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SQL Server insert if not exists best practice

... Semantically you are asking "insert Competitors where doesn't already exist": INSERT Competitors (cName) SELECT DISTINCT Name FROM CompResults cr WHERE NOT EXISTS (SELECT * FROM Competitors c WHERE cr.Name = c.cName...
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Copy all the lines to clipboard

Is there any way to copy all lines from open file to clipboard in VI editor. I tried y G but it's not using clipboard to store those lines. ...
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How to reload .bash_profile from the command line?

... @StasS - . and source are literally the same thing in bash. From the link: "source is a synonym for dot/period '.' in bash, but not in POSIX sh, so for maximum compatibility use the period." – Carl Norum Jan 15 '17 at...
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Default constructor with empty brackets

... reason that an empty set of round brackets (parentheses) isn't valid for calling the default constructor in C++? 9 Answers...
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How to remove local (untracked) files from the current Git working tree

...e not under version control, starting from the current directory. Normally, only files unknown to Git are removed, but if the -x option is specified, ignored files are also removed. This can, for example, be useful to remove all build products. If any optional <path>... arguments are...
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Vim 80 column layout concerns

... You can even automatically base the value of 'colorcolumn' on 'textwidth' with something like :set cc=+1 – graywh Oct 1 '10 at 16:37 ...
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tooltips for Button

... @EduardLuca, In my case tooltip really does no work on disabled buttons because Bootstrap sets pointer-events: none for disabled state. It should work if set pointer-events: auto directly to the element. – Vitaliy Alekask ...
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Script to kill all connections to a database (More than RESTRICTED_USER ROLLBACK)

... Such a nice answer for aggregating kill statements all together. I would use a cursor to kill each process, which of course is not efficient at all. The technique used in this answer is brilliant. – Saeed Neamati Mar 2 '14 at 6:27 ...
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Modify table: How to change 'Allow Nulls' attribute from not null to allow null

How to change one attribute in a table using T-SQL to allow nulls (not null --> null)? Alter table maybe? 8 Answers ...
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How do I escape the wildcard/asterisk character in bash?

...From the bash manual quote removal is: After the preceding expansions, all unquoted occurrences of the characters ‘\’, ‘'’, and ‘"’ that did not result from one of the above expansions are removed. So what happens is when you type the command directly into the command line,...