跟oracle中的instr用法一样：
SQL> select count(*) from t where instr(title,‟oracle‟)>0; COUNT(*) ———- 5478
Elapsed: 00:00:11.04
SQL> select count(*) from t where title like ”%oracle%‟; COUNT(*) ———- 5478
Elapsed: 00:00:31.47
注:
instr(title,'oracle‟)>0 相当于like
instr(title,'oracle‟)=0 相当于not like
