Outdated Version
You are viewing an older version of this section. View current production version.
SUBSTRING_INDEX
Extracts the portion of a string up to the given number of occurrences of a delimiter. This is mainly useful for delimited strings, such as a CSV or ASCII table. If the count argument is negative, the delimiters will be counted starting from the right, and the portion of the string to the right of the final delimiter will be returned.
Syntax
SUBSTRING_INDEX(str, delimiter, count)
Arguments
- str: any string or binary object
- delimiter: the ‘field’ delimiter
- count: the number of fields to extract
Return Type
String
Examples
memsql> select substring_index('a b c d', ' ', 3);
+------------------------------------+
| substring_index('a b c d', ' ', 3) |
+------------------------------------+
| a b c |
+------------------------------------+
memsql> select substring_index('de305d54-75b4-431b-adb2-eb613', '-', 2) as uuid;
+---------------+
| uuid |
+---------------+
| de305d54-75b4 |
+---------------+
memsql> select substring_index('01-23-45-67-89', '-', -2);
+--------------------------------------------+
| substring_index('01-23-45-67-89', '-', -2) |
+--------------------------------------------+
| 67-89 |
+--------------------------------------------+
Related Topics
