大约有 37,000 项符合查询结果（耗时：0.0319秒） [XML]
How to get distinct values for non-key column fields in Laravel?
...should use groupby. In Query Builder you can do it this way:
$users = DB::table('users')
->select('id','name', 'email')
->groupBy('name')
->get();
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jQuery: How can i create a simple overlay?
...imple javascript only solution
function displayOverlay(text) {
$("<table id='overlay'><tbody><tr><td>" + text + "</td></tr></tbody></table>").css({
"position": "fixed",
"top": 0,
"left": 0,
"width": "100%",
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Ruby on Rails: how do I sort with two columns using ActiveRecord?
...s, you should use the following more robust version: :order => ["DATE(#{table_name}.updated_at)", :price] (Note that :price is a symbol.)
– Jo Liss
Jul 31 '12 at 17:32
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Is it possible to Pivot data using LINQ?
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Group your data on month, and then project it into a new datatable with columns for each month. The new table would be your pivot table.
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selecting unique values from a column
I have a MySQL table which contains the following type of information:
9 Answers
9
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Differences between MySQL and SQL Server [closed]
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I can't believe that no one mentioned that MySQL doesn't support Common Table Expressions (CTE) / "with" statements. It's a pretty annoying difference.
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How do I wrap text in a UITableViewCell without a custom cell
...ers for 2.1 are fine too, though I am unaware of any differences regarding tables.
10 Answers
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differentiate null=True, blank=True in django
...e)
The database fields created for PostgreSQL 9.4 are :
CREATE TABLE Test (
id serial NOT NULL,
"charNull" character varying(10),
"charBlank" character varying(10) NOT NULL,
"charNullBlank" character varying(10),
"intNull" in...
Group by month and year in MySQL
Given a table with a timestamp on each row, how would you format the query to fit into this specific json object format.
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HTTP error 403 in Python 3 Web Scraping
...hich fakes web client.
NOTE: The page contains Ajax call that creates the table you probably want to parse. You'll need to check the javascript logic of the page or simply using browser debugger (like Firebug / Net tab) to see which url you need to call to get the table's content.
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