MySQL full text search equivalents to Google search

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AND

Google search: keyword1 keyword2 same as keyword1 AND keyword2 or keyword1 +keyword2. Icon_exclaim.gif (1) The following is exact words search. (2) Replace column_name with your column name

  • Google: 易筋經 AND 吸星大法
  • MySQL: column_name REGEXP '易筋經' AND column_name REGEXP '吸星大法'
  • MySQL: column_name LIKE '%易筋經%' AND column_name LIKE '%吸星大法%' (online demo[1])
  • MySQL: IF(LOCATE('易筋經', column_name) > 0) AND IF(LOCATE('吸星大法, column_name) > 0)
  • MySQL: column_name LIKE '%易筋經%吸星大法%' AND column_name LIKE '%吸星大法%易筋經%' Icon_exclaim.gif Trivial for multiple keywords

OR

Google search: keyword1 OR keyword2

  • Google: 易筋經 OR 吸星大法
  • MySQL: column_name REGEXP '易筋經' OR column_name REGEXP '吸星大法'
  • MySQL: IF(LOCATE('易筋經', column_name) > 0) OR IF(LOCATE('吸星大法, column_name) > 0)
  • MySQL: column_name LIKE '%易筋經%' OR column_name LIKE '%吸星大法%' (online demo[2])

NOT

Google search: keyword1 NOT keyword2 same as keyword1 -keyword2

  • Google: 易筋經 NOT 吸星大法
  • MySQL: column_name REGEXP '易筋經' AND column_name NOT REGEXP '吸星大法' (online demo)
  • MySQL: IF(LOCATE('易筋經', column_name) > 0) AND IF(LOCATE('吸星大法, column_name) = 0)
  • MySQL: column_name LIKE '%易筋經%' AND column_name NOT LIKE '%吸星大法%'

* wildcard operator

Google * wildcard operator. "Use *, an asterisk character, known as a wildcard, to match one or more words in a phrase" [1] (online demo)

  • Google: 狐狸*叫
  • MySQL: column_name LIKE '狐狸%叫'[2]

Ignore special characters

Ignore return symbol and span tag

  • Example:
    • Searched the keywords e.g. "意法" site:ptt.cc on Google and found the search result contains 意 & 法 located in the nearest but different rows. 意 is at the end of the n-th row. 法 is at the beginning of n+1-th row [3].
  • Approach: (1) remove the html tag (2) remove the return symbol (Carriage return).

Ignore space, Halfwidth and fullwidth symbol (半形字元和全形字元)

  • Examples:
    • Searched the keywords e.g. "嗎有" on Google and found the search result contains 嗎？ 有 & 嗎- 有.
    • Searched the keywords e.g. "人物誌Persona" on Google and found the search result contains 人物誌（Persona）, 人物誌(Persona) & 「人物誌」（persona）.
  • Approach: (1) remove the space symbol (2) remove the Halfwidth and fullwidth symbol.
  • References: PHP remove symbols from string - Stack Overflow

Highlight search query keywords on resulting pages

Total 130 ~ 240 characters on Google resulting pages.

Input search keywords, and returned the matched paragraph. Using MySQL SUBSTRING() function, POSITION() function & CHAR_LENGTH() function. 


SET @term := "吸星大法";
SET @message := "笑傲江湖中嵩山派掌門左冷禪所創掌法，可發出至陰至寒的真氣。左冷禪與任我行比武時，以此功對付吸星大法，使其全身凍僵、天池穴被封;與岳不群比劍奪帥時，左又使出寒冰神掌，與紫霞神功旗鼓相當、不分勝敗。

原文網址：https://kknews.cc/zh-tw/culture/xzaxbq.html";


SELECT 
@message

, CASE
  WHEN POSITION(@term IN @message) > 0 THEN SUBSTRING(@message
        , IF(
            POSITION(@term IN @message) > 0 &&
            POSITION(@term IN @message) -10 < 0
            , 1
            , POSITION(@term IN @message) -10)
        , CHAR_LENGTH(@term) + 20
      )
  ELSE ''
END AS "scrapbook"

-- Returned result of scrapbook column: Show 10 characters before or after the search keywords.
-- 行比武時，以此功對付吸星大法，使其全身凍僵、天池



SET @term := "吸星大法";
SET @message := "原文網址：https://kknews.cc/zh-tw/culture/xzaxbq.html";


SELECT 
@message

, CASE
  WHEN POSITION(@term IN @message) > 0 THEN SUBSTRING(@message
        , IF(
            POSITION(@term IN @message) > 0 &&
            POSITION(@term IN @message) -10 < 0
            , 1
            , POSITION(@term IN @message) -10)
        , CHAR_LENGTH(@term) + 20
      )
  ELSE ''
END AS "scrapbook"

-- Returned result of scrapbook column: Show 10 characters before or after the search keywords.
-- [EMPTY]

Unverified PHP solution: php - highlight multiple keywords in search - Stack Overflow

Ranking factors

Possibile factors

References or related articles

to explore strange new worlds / related articles:

other search cases: if the column ... (inspired by OutWit)

  • contains ____
  • does not contain ____
  • begins with ____
  • does not begins with ____
  • ends with ____
  • does not ends with ____
  • equals to ____
  • does not equal ____

references

  1. ↑ Google's * Wildcard Operator - Google Guide
  2. ↑ Using MySQL LIKE Operator to Select Data Based on Pattern Matching


related news:

MySQL OR nosql related news
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