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How to remove the first commit in git?
...the most secure way is to use the update-ref command:
git update-ref -d HEAD
It will delete the named reference HEAD, so it will reset (softly, you will not lose your work) all your commits of your current branch.
If what you want is to merge the first commit with the second one, you can use the...
How to test an SQL Update statement before running it?
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In addition to using a transaction as Imad has said (which should be mandatory anyway) you can also do a sanity check which rows are affected by running a select using the same WHERE clause as the UPDATE.
So if you UPDATE is
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Create a date from day month and year with T-SQL
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Community♦
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answered Nov 5 '08 at 22:17
Cade RouxCade Roux
82.1k3838 gold badges16716...
Can we pass parameters to a view in SQL?
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As already stated you can't.
A possible solution would be to implement a stored function, like:
CREATE FUNCTION v_emp (@pintEno INT)
RETURNS TABLE
AS
RETURN
SELECT * FROM emp WHERE emp_id=@pintEno;
This allows you to use ...
Queries vs. Filters
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javannajavanna
51.7k1212 gold badges132132 silver badges120120 bronze badges
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What is the printf format specifier for bool?
...ype shorter than int is promoted to int when passed down to printf()'s variadic arguments, you can use %d:
bool x = true;
printf("%d\n", x); // prints 1
But why not:
printf(x ? "true" : "false");
or, better:
printf("%s", x ? "true" : "false");
or, even better:
fputs(x ? "true" : "false", s...
What's the best way to build a string of delimited items in Java?
...to another web service without knowing how many elements there would be in advance. The best I could come up with off the top of my head was something like this:
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Array to Hash Ruby
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Ben LeeBen Lee
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Finding out whether a string is numeric or not
How can we check if a string is made up of numbers only. I am taking out a substring from a string and want to check if it is a numeric substring or not.
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System.Data.SQLite Close() not releasing database file
...) this does not close the database.
From my point of view this is a very bad way to do things since the programmer is not actually certain when the database gets closed, but that is the way it has been done so I guess we have to live with it for now, or commit a few changes to System.Data.SQLite. A...