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How to change the CHARACTER SET (and COLLATION) throughout a database?
...8. Hope this helps!
-- Change DATABASE Default Collation
SELECT DISTINCT concat('ALTER DATABASE `', TABLE_SCHEMA, '` CHARACTER SET utf8 COLLATE utf8_unicode_ci;')
from information_schema.tables
where TABLE_SCHEMA like 'database_name';
-- Change TABLE Collation / Char Set
SELECT concat('ALTER T...
node.js fs.readdir recursive directory search
... {
walk(file, function(err, res) {
results = results.concat(res);
if (!--pending) done(null, results);
});
} else {
results.push(file);
if (!--pending) done(null, results);
}
});
});
});
};
A serial loop wo...
How can I combine multiple rows into a comma-delimited list in Oracle? [duplicate]
...
Just make sure your concatenated results don't exceed the VARCHAR2 max length limit of your oracle database (most likely 4000 bytes) otherwise you will run into ORA-01489 result of string concatenation is too long.
– JanM
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Best way to get InnerXml of an XElement?
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Plain old System.Xml - Greg Hurlman (0.134 seconds)
Aggregate with string concatenation - Mike Powell (0.324 seconds)
StringBuilder - Vin (0.333 seconds)
String.Join on array - Terry (0.360 seconds)
String.Concat on array - Marcin Kosieradzki (0.364)
Method
I used a single XML document with 20...
How do I connect to a specific Wi-Fi network in Android programmatically?
... well).
WifiConfiguration wfc = new WifiConfiguration();
wfc.SSID = "\"".concat(ssid).concat("\"");
wfc.status = WifiConfiguration.Status.DISABLED;
wfc.priority = 40;
Now for the more complicated part: we need to fill several members of WifiConfiguration to specify the network’s security mode....
How can I append a string to an existing field in MySQL?
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You need to use the CONCAT() function in MySQL for string concatenation:
UPDATE categories SET code = CONCAT(code, '_standard') WHERE id = 1;
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Merging two arrays in .NET
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In C# 3.0 you can use LINQ's Concat method to accomplish this easily:
int[] front = { 1, 2, 3, 4 };
int[] back = { 5, 6, 7, 8 };
int[] combined = front.Concat(back).ToArray();
In C# 2.0 you don't have such a direct way, but Array.Copy is probably the ...
Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?
...eard what Ash mentioned in his answer (that using Array.join is faster for concatenation) so I wanted to test out the different methods of concatenating strings and abstracting the fastest way into a StringBuilder. I wrote some tests to see if this is true (it isn't!).
This was what I believed woul...
MySQL DROP all tables, ignoring foreign keys
...tweaks:
Limit the generated drops to your database like this:
SELECT concat('DROP TABLE IF EXISTS `', table_name, '`;')
FROM information_schema.tables
WHERE table_schema = 'MyDatabaseName';
Note 1: This does not execute the DROP statements, it just gives you a list of them. You will need to ...
What is the purpose of “!” and “?” at the end of method names?
... Beware, this isn't always the case. For example, Ruby Array#concat docs.ruby-lang.org/en/2.0.0/Array.html#method-i-concat. Where you can get burnt badly is something like MyActiveRecordModel.column_names.concat(...). Instead you must clone it before doing the concat.
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