What is the meaning of in mysql query

Question

I have a MySQL query that includes  lt   in it  I don t know the exact usage of it   SELECT   FROM table laef WHERE id     AND genre type  lt  gt   LIVE    P S   Im sorry for this basic syntax  since I have searched for this on Google  All they give is about  lt     Thanks anyway  guys

User · Answer

In MySQL   lt  gt  means Not Equal To  just like      mysql gt  SELECT   01   lt  gt   0 01           - gt  1 mysql gt  SELECT  01  lt  gt   0 01           - gt  0 mysql gt  SELECT  zapp   lt  gt   zappp           - gt  1   see the docs for more info

User · Answer

lt  gt  means NOT EQUAL TO     also means NOT EQUAL TO  It s just another syntactic sugar  both  lt  gt  and    are same   The below two examples are doing the same thing  Query publisher table to bring results which are NOT EQUAL TO  lt  gt     USA   SELECT pub name country pub city estd FROM publisher WHERE country  lt  gt   USA    SELECT pub name country pub city estd FROM publisher WHERE country     USA

User · Answer

lt  gt  is standard ANSI SQL and stands for not equal or

User · Answer

lt  gt  is equal to    i e  both are used to represent the NOT EQUAL operation  For instance  email  lt  gt     and email       are same

User · Answer

lt  gt  means not equal to     also means not equal to   Documentation

User · Answer

In MySQL  I use  lt  gt  to preferentially place specific rows at the front of a sort request   For instance  under the column topic  I have the classifications of  Chair    Metabolomics    Proteomics   and  Endocrine   I always want to list any individual s  with the topic  Chair   first  and then list the other members in alphabetical order based on their topic and then their name last     I do this with    SELECT scicom list ORDER BY topic  lt  gt   Chair  topic name last    This outputs the rows in the order of  Chair Endocrine Metabolomics Proteomics  Notice that topic  lt  gt   Chair  is used to select all the rows with  Chair  first  It then sorts the rows where topic   Chair by name last     This is a bit counterintuitive since  lt  gt  equals    based on other feedback in this post   This syntax can also be used to prioritize multiple categories  For instance  if I want to have  Chair  and then  Vice Chair  listed before the rest of the topics  I use the following  SELECT scicom list ORDER BY topic  lt  gt   Chair  topic  lt  gt   Vice Chair  topic name last    This outputs the rows in the order of  Chair Vice Chair Endocrine Metabolomics Proteomics

[mysql] What is the meaning of <> in mysql query?

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