大约有 20,000 项符合查询结果（耗时：0.0297秒） [XML]
Error handling in getJSON calls
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Someone give Luciano these points :)
I just tested his answer -had a similar question- and worked perfectly...
I even add my 50 cents:
.error(function(jqXHR, textStatus, errorThrown) {
console.log("error " + textStatus);
console.log("incoming Text " +...
Converting string to byte array in C#
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@EranYogev why it should fail? I have tested it for the whole range of System.Int32 and it was correct. Can you please explain here or in this question: stackoverflow.com/questions/64077979/…
– astef
5 hours ago
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Difference between VARCHAR and TEXT in MySQL [duplicate]
...the maximum length.
E.g. if you use the charset latin1 and store the text "Test" in VARCHAR(30), VARCHAR(100) and TINYTEXT, it always requires 5 bytes (1 byte to store the length of the string and 1 byte for each character). If you store the same text in a VARCHAR(2000) or a TEXT column, it would al...
Get record counts for all tables in MySQL database
...t(id)) is what mysql uses to count it's rows isn't it? In any case, I just tested it and got a bigger number for the count() call, whatever that is worth.
– codygman
May 24 '13 at 16:24
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How do you allow spaces to be entered using scanf?
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I did not test, but based on other answers in this very page, I believe the correct buffer size for scanf in your example would be: scanf("%19[^\n]", name); (still +1 for the concise answer)
– DrBeco
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How can I see which Git branches are tracking which remote / upstream branch?
...ok like:
master <- origin/master
A non-tracking one will look like:
test <-
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What is a columnar database?
...receive less resources/interest than work on "General Purpose", "Tried and Tested", tabular approach.
Tentatively, the Entity-Attribute-Value (EAV) data model, may be an alternative storage strategy which you may want to consider. Although distinct from the "pure" Columnar DB model, EAV shares sev...
Socket.IO - how do I get a list of connected sockets/clients?
...omes io.connected, io.sockets.adapter.rooms becomes io.adapter.rooms ...)
Tested on socket.io 1.3.5
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Internet Explorer's CSS rules limits
...import up to 4095 sheets
@import nesting supports up to 4095 levels deep
Testing the 4095 rule by sheet limit
By way of confirmation, I've created a gist with 3 files. One HTML, and two CSS files.
The first file contains 4096 selectors and means that its final selector doesn't get read in.
The...
What's the difference between RANK() and DENSE_RANK() functions in oracle?
... items.
As for nulls, it depends on the ORDER BY clause. Here is a simple test script you can play with to see what happens:
with q as (
select 10 deptno, 'rrr' empname, 10000.00 sal from dual union all
select 11, 'nnn', 20000.00 from dual union all
select 11, 'mmm', 5000.00 from dual union all
se...