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What is the fastest way to compute sin and cos together?
...are supported on processor level, I expect them to be way much faster than table lookups.
Edit:
Wikipedia suggests that FSINCOS was added at 387 processors, so you can hardly find a processor which doesn't support it.
Edit:
Intel's documentation states that FSINCOS is just about 5 times slower tha...
Fastest way to flatten / un-flatten nested JSON objects
...object:
var flatten = (function (isArray, wrapped) {
return function (table) {
return reduce("", {}, table);
};
function reduce(path, accumulator, table) {
if (isArray(table)) {
var length = table.length;
if (length) {
var index ...
SQL Server Index Naming Conventions [closed]
...dexes
All of my index name take the form of
<index or key type>_<table name>_<column 1>_<column 2>_<column n>
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Oracle query to fetch column names
I have a mySQL query to get columns from a table like this:
12 Answers
12
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How do I spool to a CSV formatted file using SQLPLUS?
...t for numbers (avoid scientific notation on IDs)
spool myfile.csv
select table_name, tablespace_name
from all_tables
where owner = 'SYS'
and tablespace_name is not null;
Output will be like:
TABLE_PRIVILEGE_MAP ,SYSTEM
SYSTEM_PRIVILEGE_MAP ...
How to customize the background/border colors of a grouped table view cell?
...to customize both the background and the border color of a grouped-style UITableView.
11 Answers
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MySQL Removing Some Foreign keys
I have a table whose primary key is used in several other tables and has several foreign keys to other tables.
11 Answers
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...unction foo(x) return x^2 end
foo = function(x) return x^2 end复制代码
Table所谓Table其实就是一个Key Value的数据结构，它很像Javascript中的Object，或是PHP中的数组，在别的语言里叫Dict或Map，Table长成这个样子：haoel = {name="ChenHao", age=37, han...
Have a reloadData for a UITableView animate when changing
I have a UITableView that has two modes. When we switch between the modes I have a different number of sections and cells per section. Ideally, it would do some cool animation when the table grows or shrinks.
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How can I make SQL case sensitive string comparison on MySQL?
...y I have had luck in using varbinary instead of varchar for a field in ut8 table. HTH
– Andrew T
Jan 5 '15 at 19:54
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