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Can I add jars to maven 2 build classpath without installing them?
...cher2-1_3.jar</systemPath>" ${basedir} is pointing to your project's root.
– Frederic Morin
Apr 19 '09 at 7:40
4
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String.Join method that ignores empty strings?
...it's even simpler, since you can do it in SQL directly:
PostgreSQL & MySQL:
SELECT
concat_ws(' / '
, NULLIF(searchTerm1, '')
, NULLIF(searchTerm2, '')
, NULLIF(searchTerm3, '')
, NULLIF(searchTerm4, '')
) AS RPT_SearchTerms;
And even with the glori...
Why unsigned integer is not available in PostgreSQL?
... is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? ) and realized that PostgreSQL does not support unsigned integer.
...
Select rows which are not present in other table
... records where join doesn't exist
Similar question on dba.SE targeted at MySQL:
Select rows where value of second column is not present in first column
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How to include layout inside layout?
...
Why put the TextView in a RelativeLayout and not as the root view?
– Florian Walther
Mar 27 '18 at 12:36
...
Advantages and disadvantages of GUID / UUID database keys
...of GUIDs as Primary Keys (SQL Server 2000)
Myths, GUID vs. Autoincrement (MySQL 5)
This is realy what you want.
UID Pros
Unique across every table, every database, every server
Allows easy merging of records from different databases
Allows easy distribution of databases across multiple servers
...
How to get a time zone from a location using latitude and longitude coordinates?
...her Ideas
Find the nearest city with an R-Tree
Find the nearest city with MySQL
Please update this list if you know of any others
Also, note that the nearest-city approach may not yield the "correct" result, just an approximation.
Conversion To Windows Zones
Most of the methods listed will return ...
Database Design for Revisions?
...le should contain all columns present in the first, Records table. E.g. in mysql you can easily create table with the same structure as another table (create table X like Y). And, when you are about to change structure of the Records table in your live database, you have to use alter table commands ...
Cleaner way to do a null check in C#? [duplicate]
...public static class Helper
{
public static bool IsNull<T>(this T root,Expression<Func<T, object>> getter)
{
var visitor = new IsNullVisitor();
visitor.CurrentObject = root;
visitor.Visit(getter);
return visitor.IsNull;
}
}
class Program
...
How can I reset a react component including all transitively reachable state?
...mention and state of children is reset, you can add a key attribute to the root-level component returned by render; when it changes, that component will be thrown away and created from scratch.
render: function() {
// ...
return <div key={uniqueId}>
{children}
</div>...