大约有 8,000 项符合查询结果（耗时：0.0185秒） [XML]
Create table using Javascript
...')[0];
var tbl = document.createElement('table');
tbl.style.width = '100%';
tbl.setAttribute('border', '1');
var tbdy = document.createElement('tbody');
for (var i = 0; i < 3; i++) {
var tr = document.createElement('tr');
for (var j = 0; j < 2; j++) {
if (i == 2...
Rails 3: Get Random Record
...125-perf) where the db is in localhost and users table has a bit more than 100K records.
Using
order by RAND()
is quite slow
User.order("RAND(id)").first
becomes
SELECT users.* FROM users ORDER BY RAND(id) LIMIT 1
and takes from 8 to 12 seconds to respond!!
Rails log:
User L...
if else in a list comprehension [duplicate]
...
user225312user225312
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Maximum call stack size exceeded error
... however I would assume it is something like driving two identical cars at 100mph through the same toll gateway.
– lucygenik
Jun 22 '14 at 21:03
3
...
Textarea Auto height [duplicate]
...:
autosize(document.getElementById("note"));
textarea#note {
width:100%;
box-sizing:border-box;
direction:rtl;
display:block;
max-width:100%;
line-height:1.5;
padding:15px 15px 30px;
border-radius:3px;
border:1px solid #F7E98D;
font:13px Tahoma, cursive;
transition:box-sh...
How to show soft-keyboard when edittext is focused
..., 0, 0));
}
}, 200);
It works for me with 100ms delay, but failed without any delay or with only a delay of 1ms.
Commented part of code shows another approach, which works only on some devices. I tested on OS versions 2.2 (emulator), 2.2.1 (real device) and 1.6 (em...
How do I get the find command to print out the file size with the file name?
...answer is much more efficient because it avoids a fork+exec on every file (100x faster on my machine). I had to change %k to %s. @FaheemMitha: you can add options like -type f to only count regular files.
– Mr Fooz
Sep 29 '16 at 23:19
...
Is there a way to call a stored procedure with Dapper?
...child relation )
create PROCEDURE GetEventCategories
@keyword as nvarchar(100)
AS
BEGIN
WITH CTE(Id, Name, IdHierarchy,parentId) AS
(
SELECT
e.EventCategoryID as Id, cast(e.Title as varchar(max)) as Name,
cast(cast(e.EventCategoryID as char(5)) as varchar(max)) I...
TransactionScope automatically escalating to MSDTC on some machines?
...ikhar-PC;Initial Catalog=LogDB;Integrated Security=SSPI;Connection Timeout=100"))
{
cmd = new SqlCommand("Insert into Log values(newid(),'" + "Dowork2()" + "','Info',getDate())");
cmd.Connection = conn2;
cmd.Connection.Open(...
How to pass data from 2nd activity to 1st activity when pressed back? - android
...SwayamSwayam
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