Files
doris/new-docs/en/sql-manual/sql-functions/string-functions/like/like.md
jiafeng.zhang c02625efa9 [refactor][doc] Doris official website new version documentation (#8757)
I started a discussion on this before, you can check it in the mail group

https://lists.apache.org/thread/o770bc3k623kyfks2mzkt21qsc4g6328

In order to facilitate everyone to organize the documents, I created a new-docs directory under the incubator-doris directory. The new directory structure is below this. I just created a directory structure here, which needs to be rearranged.

In the data import scenario, in order to take into account the viewing habits of previous users, the import is organized in two ways:

1. According to the usage scenario: This will give users clearer guidance. For example, the user is the data source of kafka, then the user can directly select the routine to load
2. According to the import method: it is the introduction of the various import methods we provided before

In order to facilitate everyone to run and debug locally, I migrated the entire .vuepress under the original document. After completion, you only need to delete the original docs directory and rename the new new-docs directory to docs. At the same time, you can also run it locally, so that you can organize documents and know the content of each document directory.

In the local debugging execution, switch to the new-docs directory and execute the following command:

````
npm install
npm run dev
````
then through the browser
http://ip:port/zh-CN
http://ip:port/en
2022-03-31 12:01:02 +08:00

1.9 KiB

title, language
title language
like en

like

description

syntax

BOOLEAN like(VARCHAR str, VARCHAR pattern)

Perform fuzzy matching on the string str, return true if it matches, and false if it doesn't match.

like match/fuzzy match, will be used in combination with % and _.

the percent sign ('%') represents zero, one, or more characters.

the underscore ('_') represents a single character.

'a'   // Precise matching, the same effect as `=`
'%a'  // data ending with a
'a%'  // data starting with a
'%a%' // data containing a
'_a_' // three digits and the middle letter is a
'_a'  // two digits and the ending letter is a
'a_'  // two digits and the initial letter is a
'a__b'  // four digits, starting letter is a and ending letter is b

example

// table test
+-------+
| k1    |
+-------+
| b     |
| bb    |
| bab   |
| a     |
+-------+

// Return the data containing a in the k1 string
mysql> select k1 from test where k1 like '%a%';
+-------+
| k1    |
+-------+
| a     |
| bab   |
+-------+

// Return the data equal to a in the k1 string
mysql> select k1 from test where k1 like 'a';
+-------+
| k1    |
+-------+
| a     |
+-------+

keyword

LIKE