如何使用多個或在MySQL

Question

我需要comp_gid像holder1_name，holder1_fh_name強制其餘字段＆和條件，holder1_pan_no可能包含值或將是空

SELECT * 
FROM sta.sta_trn_tfolio 
where (holder1_name='AMAR' or holder1_fh_name='' or holder1_pan_no='') 
AND comp_gid='1' ; 

，但我只得到comp_gid條件。幫助我，如果有人知道

Answer 1

您應該NULL補充檢查：

SELECT * FROM sta.sta_trn_tfolio 
where 
    (holder1_name IS NULL OR 
    holder1_fh_name IS NULL OR 
    holder1_pan_no IS NULL OR 
    holder1_name='AMAR' or 
    holder1_fh_name='' or 
    holder1_pan_no='')  
    AND comp_gid='1' ;