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Export and Import all MySQL databases at one time
...-databases > alldb.sql
mysqldump -u root -p --all-databases --skip-lock-tables > alldb.sql
Import:
mysql -u root -p < alldb.sql
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Delete/Reset all entries in Core Data?
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You can delete the SQLite file - but I choose to do it by purging the tables individually with a functions:
- (void) deleteAllObjects: (NSString *) entityDescription {
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription enti...
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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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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Create the perfect JPA entity [closed]
...to create entities I find myself struggling with issues as AccessType, immutable properties, equals/hashCode, ... .
So I decided to try and find out the general best practice for each issue and write this down for personal use.
I would not mind however for anyone to comment on it or to tell me w...
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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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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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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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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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.
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