大约有 37,000 项符合查询结果（耗时：0.0262秒） [XML]
MySQL query String contains
...
Quite simple actually:
mysql_query("
SELECT *
FROM `table`
WHERE `column` LIKE '%{$needle}%'
");
The % is a wildcard for any characters set (none, one or many). Do note that this can get slow on very large datasets so if your database grows you'll need to use fulltext indice...
SQL Server SELECT LAST N Rows
...Feature also. A great example can be found here:
I am using the Orders table of the Northwind database... Now let us retrieve the Last 5 orders placed by Employee 5:
SELECT ORDERID, CUSTOMERID, OrderDate
FROM
(
SELECT ROW_NUMBER() OVER (PARTITION BY EmployeeID ORDER BY OrderDate DESC) AS Or...
How to use Servlets and Ajax?
...gt; as JSON
Here's an example which displays List<Product> in a <table> where the Product class has the properties Long id, String name and BigDecimal price. The servlet:
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, I...
How to get sp_executesql result into a variable?
...LARE @sSQL nvarchar(500);
DECLARE @ParmDefinition nvarchar(500);
DECLARE @tablename nvarchar(50)
SELECT @tablename = N'products'
SELECT @sSQL = N'SELECT @retvalOUT = MAX(ID) FROM ' + @tablename;
SET @ParmDefinition = N'@retvalOUT int OUTPUT';
EXEC sp_executesql @sSQL, @ParmDefinition, @retv...
Postgis installation: type “geometry” does not exist
I am trying to create table with Postgis. I do it by this page . But when I import postgis.sql file, I get a lot of errors:
...
Get generated id after insert
... @GrAnd, but what if I'll delete some "start-middle" rows in my table, so I break the sequence of n-th rows with generated id=n. Will that returned row ID remain the same as generated autoincrement id?
– UnknownJoe
Jan 28 '14 at 9:07
...
What is causing this ActiveRecord::ReadOnlyRecord error?
...ue is always automatically inferred in has_and_belongs_to_many if the join table has more than the two foreign keys columns and :joins was specified without an explicit :select (i.e. user-supplied :readonly values are ignored -- see finding_with_ambiguous_select? in active_record/associations/has_an...
What is a good Hash Function?
...
For doing "normal" hash table lookups on basically any kind of data - this one by Paul Hsieh is the best I've ever used.
http://www.azillionmonkeys.com/qed/hash.html
If you care about cryptographically secure or anything else more advanced, then Y...
Check if a Postgres JSON array contains a string
I have a table to store information about my rabbits. It looks like this:
4 Answers
4
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CSS Printing: Avoiding cut-in-half DIVs between pages?
... only way I could get this to work for IE was to wrap each div in it's own table and set the page-break-inside on the table to avoid.
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