Su, Xiaomeng 76a5b1ee83 dli_sqlreference_20240227

Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: Su, Xiaomeng <suxiaomeng1@huawei.com>
Co-committed-by: Su, Xiaomeng <suxiaomeng1@huawei.com>

2024-03-27 22:02:33 +00:00

6.8 KiB

Raw Blame History

substring_index

This function is used to truncate the string before the count separator of str. If the value of count is positive, the string is truncated from the left. If the value of count is negative, the string is truncated from the right.

Syntax

substring_index(string <str>, string <separator>, int <count>)

Parameters

**Table 1** Parameters
Parameter	Mandatory	Type	Description
str	Yes	STRING	String to be truncated
separator	Yes	STRING	Separator of the STRING type
count	No	INT	Position of the delimiter

Return Values

The return value is of the STRING type.

If the value of any input parameter is NULL, NULL is returned.

Example Code

The value hello.world is returned.

SELECT substring_index('hello.world.people', '.', 2);

The value world.people is returned.

select substring_index('hello.world.people', '.', -2);

Parent topic: String Functions

6.8 KiB Raw Blame History