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GROUP_CONCAT comma separator - MySQL
I have a query where I am using GROUP_CONCAT and a custom separator as my results may contain commas: '----'
3 Answers
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Avoiding memory leaks with Scalaz 7 zipWithIndex/group enumeratees
Background
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How to find which rspec test is taking so long
One (or a couple) of our tests are taking forever and we'd like to optimize them.
1 Answer
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Where do I mark a lambda expression async?
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To mark a lambda async, simply prepend async before its argument list:
// Add a command to delete the current Group
contextMenu.Commands.Add(new UICommand("Delete this Group", async (contextMenuCmd) =>
{
SQLiteUtils slu = new SQLiteUtils();
await slu.DeleteGroupAsync(grou...
How do you rename a table in SQLite 3.0?
How do you rename a table in SQLite 3.0?
2 Answers
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MySQL how to join tables on two fields
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SELECT *
FROM t1
JOIN t2 USING (id, date)
perhaps you'll need to use INNEER JOIN or
where t2.id is not null
if you want results only matching both conditions
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How to remove origin from git repository
Basic question: How do I disassociate a git repo from the origin from which it was cloned?
2 Answers
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Is [CallerMemberName] slow compared to alternatives when implementing INotifyPropertyChanged?
There are good articles that suggest different ways for implementing INotifyPropertyChanged .
1 Answer
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How to read the database table name of a Model instance?
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Found the answer myself: the _meta attribute of an instance has the information:
model_instance._meta.db_table
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impr...
How to drop multiple columns in postgresql
I want to drop 200 columns in my table in PostgreSQL. I tried:
2 Answers
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