sql statement - how to query data in another table based on the data in one table

The following is a basic style of SQL statement:

select *from table 2where name in (select namefrom table 1where condition)

Example requirements: It is applied in the project like this: I need to find the bin number placed on the bin location in the bin location information table according to the bin location number, and then I will associate it with the bin number.Find the material in the bin in the bin information table.(The main query process is viewed in (1))

The following is the writing method in mybatis, the writing method of Dao.xml sql statement in mappers

(1) Writing of Dao.xml sql statement in mappers in the example

According to the warehouse_location field in the device_book table to query all the list information related to the workbin_no field, remove the results of multiple repetitions, get >workbin_no field All related list results and then go to the device_workbin table to query all related information.

(2) In the instance In Dao.xml in mappers, it corresponds to the set of all basic fields of the database table.

(3) In the example corresponding to the writing method in Dao.Java

(4) In the example corresponding to the writing in service.Java

(5) In the example corresponding to the writing in serviceImp.Java

(6) In the example corresponding to the writing method in apiController.Java

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