the structure of the table is as follows:
ID,NAME,START,END
case data are as follows:
ID NAME START END
1 Zhang San 100200
2 Zhang San 600900
3 Li Si 210 460
.
want to realize that input 150 can query 1 Zhang San 100 200, input 460 query to 3 Li Si 210 460, and so on
for example, ask for documents that can be run by combining springboot2 with mysql and mongodb at the same time ...
Which method of HIbernate is more appropriate to use in the SQL statement select name,sex from db, for example: public T findByID (ID id, I dbName) throws Exception; public List<T> findAll(I dbName) throws Exception; public List<T> findBy...
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select t.* from talk t where t.user_id = 2 Union select t.* from talk t, user_contact c where c.user_id = 2 and c.contact_type = 1 and c.be_user_id = t.user_id you can write it this way, but you don t want to write it this way. You want to use an inner...
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