Important
Helios features are now enabled during weekly update windows and are no longer directly tied to SingleStore engine releases. Refer to the release notes to view the latest features available in your Helios cluster.
WEEK
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The WEEK() function extracts the week number
from the given datetime.
There are eight ways to number weeks, described below.
Syntax
WEEK ( dateobj, [mode] )
WEEKOFYEAR ( dateobj )Arguments
-
dateobj: a valid date, datetime, or parsable date string.
-
mode: a number from 0 to 7, corresponding to the mode desired.
|
Mode |
Description |
Counting from |
|---|---|---|
|
0 |
Week (0 to 53) starting Sunday |
First week with a Sunday |
|
1 |
Week (0 to 53) starting Monday |
First week with 4+ days |
|
2 |
Week (1 to 53) starting Sunday |
First week with a Sunday |
|
3 |
Week (1 to 53) starting Monday |
First week with 4+ days |
|
4 |
Week (0 to 53) starting Sunday |
First week with 4+ days |
|
5 |
Week (0 to 53) starting Monday |
First week with a Monday |
|
6 |
Week (1 to 53) starting Sunday |
First week with 4+ days |
|
7 |
Week (1 to 53) starting Monday |
First week with a Monday |
Important
WEEKOFYEAR (date) is equivalent to WEEK(date, 3).
Return Type
Integer
Examples
SELECT WEEK('2009-02-13 23:31:30', 7);
+--------------------------------+
| WEEK('2009-02-13 23:31:30', 7) |
+--------------------------------+
| 6 |
+--------------------------------+Related Topics
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