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Which timestamp type should I choose in a PostgreSQL database?
... (
my_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
CHECK(EXTRACT(TIMEZONE FROM my_timestamp) = '0')
);
test=> SET timezone = 'America/Los_Angeles';
SET
test=> INSERT INTO my_tbl (my_timestamp) VALUES (NOW());
ERROR: new row for relation "my_tbl" violates check constraint "my...
Count number of occurrences of a pattern in a file (even on same line)
When searching for number of occurrences of a string in a file, I generally use:
5 Answers
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PHPExcel auto size column width
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Thank you so much. It works. It does not calculate the extra spacing created from the bold font, although that's expected (I've read it somewhere). Could you update your answer to include that too?
– Alkis Kalogeris
May 26 '13 at 17:59
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Using a dictionary to count the items in a list [duplicate]
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This answer also does not require any extra imports. +1
– Hayden Holligan
Jan 17 '19 at 18:39
1
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What is the difference between JavaConverters and JavaConversions in Scala?
...ies | asScala | scala.collection.mutable.Map[String, String]
To use the conversions directly from Java, though, you're better off calling methods from JavaConversions directly; e.g.:
List<String> javaList = new ArrayList<String>(Arrays.asList("a", "b", "c...
Get Android API level of phone currently running my application [duplicate]
...than 4, then you will have to use android.os.Build.VERSION.SDK, which is a String that can be converted to the integer of the release.
If you are on at least API version 4 (Android 1.6 Donut), the current suggested way of getting the API level would be to check the value of android.os.Build.VERSION...
Objective-C Static Class Level variables
...rate with Swift type properties. They are declared as: @property (class) NSString *someStringProperty;. They are never synthesized. (23891898)
Here is an example
@interface YourClass : NSObject
@property (class, nonatomic, assign) NSInteger currentId;
@end
@implementation YourClass
static NSI...
How to call Android contacts list?
...actData, null, null, null, null);
if (c.moveToFirst()) {
String name = c.getString(c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
// TODO Whatever you want to do with the selected contact name.
}
}
break;
}
}
Full source code: tutorials...
When increasing the size of VARCHAR column on a large table could there be any problems?
I'm using SQL Server 2008 and I need to make a VARCHAR field bigger, from (200 to 1200) on a table with about 500k rows. What I need to know is if there are any issues I have not considered.
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Should I use tag for icons instead of ? [closed]
...ut no textual equivalent is available. Setting this attribute to the empty string indicates that this image is not a key part of the content; non-visual browsers may omit it from rendering."
– George Mauer
Jul 30 '15 at 17:37
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