use the program to import, php python and write a script
A a_id a_title a_key a_desc a_pid 1 A A A 1 B b_id b_title b_key b_desc b_pid 1 b 2 C c_id c_title c_key c_desc c_pid 1 $title= Ctitile || ...
how to realize the if judgment of mysql. There is now a table with two key fields SELECT * FROM house WHERE price= 8500 OR shoufu= 30 I think, when the $price passed in by php is empty, the sql search statement is SELECT * FROM house WHERE s...
Table 1 fields are as follows 2 3 1event_description_description_id2id1cel_order_item_order_item_id3id 123idnull id ask the boss for advice ...
I have found many articles on utf8_unicode_ci, utf8_general_ci and utf8_bin collation on the Internet, and I generally know that ci is case ignore, etc., but I didn t mention what other collations mean . what does the utf8mb4_polish_ci collation her...
how to design a database of classified information? I want to write all the main contents of the information (title,content) in an info table. I don t know how to design the table for special properties. category table-Real Estate Job Category in...
The database has a doneNum field that represents the number of completions. It was originally designed as varchar (38) with this schedule in mind. doneNum sum(doneNum) I would like to ask you, is there any other solution? ...
id name relation 1 n1 r1 2 n2 r2 3 n4 r1 4 n5 r1 5 n6 r2 6 n6 r1 the relation relationship of the table is shown above where the relation field indicates the relationship between the cur...
now I can only set apache, to restart every hour in cron, but this method treats the symptoms rather than the root of the problem. I am Ubuntu 16 + apache2 + php7.0 + mysql5.7 after running for a period of time, mysql hung up, and restart prompted in...