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Unicode character for “X” cancel / close?
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Note that you have to use a font that supports this character. I think DejaVu looks nice for that. I think Lucida Sans Unicode and Arial Unicode MS also support such unicode symbols. If you don't use a font that supports these characters on some browsers (especially old IE) al...
Can I have multiple Xcode versions installed?
... explicitly specify it at install time. Also, you will generally want to unselect all features besides the xcode core tools, because the others don't let you change the install directory.
– Paul Du Bois
Jul 3 '11 at 3:30
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Is there an XSLT name-of element?
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This will give you the current element name (tag name)
<xsl:value-of select ="name(.)"/>
OP-Edit: This will also do the trick:
<xsl:value-of select ="local-name()"/>
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impro...
Maximum Year in Expiry Date of Credit Card
...orget that in most browsers you can still key in the number and it'll auto select.
– Kevin Wiskia
Mar 22 '11 at 19:44
1
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Select a Dictionary with LINQ
I have used the "select" keyword and extension method to return an IEnumerable<T> with LINQ, but I have a need to return a generic Dictionary<T1, T2> and can't figure it out. The example I learned this from used something in a form similar to the following:
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Select all 'tr' except the first one
How can I select all tr elements except the first tr in a table with CSS?
10 Answers
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Correct way to quit a Qt program?
...ose your application from main() you can use this code
int main(int argc, char *argv[]){
QApplication app(argc, argv);
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if(!QSslSocket::supportsSsl()) return app.exit(0);
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return app.exec();
}
The program will terminated if OpenSSL is not installed
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How to include “zero” / “0” results in COUNT aggregate?
...n outer join for this (and you need to use person as the "driving" table)
SELECT person.person_id, COUNT(appointment.person_id) AS "number_of_appointments"
FROM person
LEFT JOIN appointment ON person.person_id = appointment.person_id
GROUP BY person.person_id;
The reason why this is working, i...
List of foreign keys and the tables they reference
..._name of the table ALL_CONSTRAINTS. This will give you the info you want:
SELECT a.table_name, a.column_name, a.constraint_name, c.owner,
-- referenced pk
c.r_owner, c_pk.table_name r_table_name, c_pk.constraint_name r_pk
FROM all_cons_columns a
JOIN all_constraints c ON a.owner ...
Truncating all tables in a Postgres database
...e IN VARCHAR) RETURNS void AS $$
DECLARE
statements CURSOR FOR
SELECT tablename FROM pg_tables
WHERE tableowner = username AND schemaname = 'public';
BEGIN
FOR stmt IN statements LOOP
EXECUTE 'TRUNCATE TABLE ' || quote_ident(stmt.tablename) || ' CASCADE;';
END LOO...