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Export specific rows from a PostgreSQL table as INSERT SQL script
...y) and add it as the 'driver' of the postgresql conneciton. The connection string (or URL as in the interface) should look like that: jdbc:postgresql://127.0.0.1:5432/db_name
– mrmuggles
Jul 13 '16 at 6:30
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Merging dictionaries in C#
...a caveat: if the this T me dictionary was declared using new Dictionary<string, T>(StringComparer.InvariantCultureIgnoreCase) or something similar, the resulting dictionary will not retain the same behavior.
– João Portela
Jan 9 '14 at 14:51
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Representing null in JSON
...son2 = '{"myCount": null}';
var json3 = '{"myCount": 0}';
var json4 = '{"myString": ""}';
var json5 = '{"myString": "null"}';
var json6 = '{"myArray": []}';
console.log(JSON.parse(json1)); // {}
console.log(JSON.parse(json2)); // {myCount: null}
console.log(JSON.parse(json3)); // {myCount: 0}
conso...
How to do INSERT into a table records extracted from another table
I'm trying to write a query that extracts and transforms data from a table and then insert those data into another table. Yes, this is a data warehousing query and I'm doing it in MS Access. So basically I want some query like this:
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Setting custom UITableViewCells height
...e views to be displayed. There is one label in the cell whose text is a NSString object and the length of string could be variable. Due to this, I cannot set a constant height to the cell in the UITableView 's heightForCellAtIndex method. The cell's height depends on the label's height which ca...
How do I right align controls in a StatusStrip?
...lStripLabel to pseudo right align controls by setting the Text property to string.Empty and setting the Spring property to true. This will cause it to fill all of the available space and push all the controls to the right of the ToolStripLabel over.
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Retain precision with double in Java
...int things out in a slightly friendlier format, try java.util.Formatter or String.format. In the format string specify a precision less than the full precision of a double. To 10 significant figures, say, 11.399999999999 is 11.4, so the result will be almost as accurate and more human-readable in ca...
How to determine day of week by passing specific date?
...e Calendar.SUNDAY), instead of going through a calendar, just reformat the string: new SimpleDateFormat("EE").format(date) (EE meaning "day of week, short version")
if you have your input as string, rather than Date, you should use SimpleDateFormat to parse it: new SimpleDateFormat("dd/M/yyyy").par...
Can I call a base class's virtual function if I'm overriding it?
... base->gogo1(7);
base->gogo2(7);
base->gogo3(7);
std::string s;
std::cout << "press any key to exit" << std::endl;
std::cin >> s;
return 0;
}
output
Derived
Derived :: gogo (int)
Derived :: gogo1 (int)
Derived :: gogo2 (int)
Derived :: gogo3 (in...
Extract part of a regex match
...
Use ( ) in regexp and group(1) in python to retrieve the captured string (re.search will return None if it doesn't find the result, so don't use group() directly):
title_search = re.search('<title>(.*)</title>', html, re.IGNORECASE)
if title_search:
title = title_search.gr...