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Homebrew: List only installed top level formulas
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Thanks! However this does show mysql as if it's not required by anything while it's actually required on my system by mysql-connector-c++. Do you happen to know if this is intentional (like if brew is keeping which formulae is installed directly not only i...
Fast way to discover the row count of a table in PostgreSQL
...e exact count (slow with big tables):
SELECT count(*) AS exact_count FROM myschema.mytable;
You get a close estimate like this (extremely fast):
SELECT reltuples::bigint AS estimate FROM pg_class where relname='mytable';
How close the estimate is depends on whether you run ANALYZE enough. It i...
Is SHA-1 secure for password storage?
...elf. This makes password hashing more expensive (by a factor of 10000 with my example), both for the legitimate user and for the attacker. Whether this is a good idea depends on the setup. For login on a desktop system, this is good: the user will not even notice that it took 10ms to hash his passwo...
How do I add a foreign key to an existing SQLite table?
...the exact end of the sql definition
// for example, if the last column was my_last_column integer not null:
UPDATE SQLITE_MASTER SET SQL = replace(sql, 'my_last_column integer not null', 'my_last_column integer not null, foreign key (col1, col2) references other_table(col1, col2)') where name = 'chi...
close vs shutdown socket?
...he other side receives an RST and then abandon the connection as well
In my test with Wireshark, with default socket options, shutdown sends a FIN packet to the other end but it is all it does. Until the other party send you the FIN packet you are still able to receive data. Once this happened, yo...
Can I compile all .cpp files in src/ to .o's in obj/, then link to binary in ./?
My project directory looks like this:
2 Answers
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Filter output in logcat by tagname
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Is it possible to use above with -f filename? Say, my scenario is to filter the logs by TagName and dump to a text file.
– Green goblin
Mar 7 '14 at 10:37
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How to perform a real time search and filter on a HTML table
... I'm pretty green with this stuff, but if I want to incorporate this into my table, do I just need to change the #table to the id of my table? Would there need to be additional changes to work with <thead> and <tbody> tags? I've included the script and html from the jsfiddle link, cha...
How do the major C# DI/IoC frameworks compare? [closed]
...hile a comprehensive answer to this question takes up hundreds of pages of my book, here's a quick comparison chart that I'm still working on:
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Using pg_dump to only get insert statements from one table within database
...p --column-inserts --data-only --table=<table> <database> > my_dump.sql
Note the > my_dump.sql command. This will put everything into a sql file named my_dump
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