l problem The Eight Queens problem is an old and famous problem. It is described as follows: Put eight queens on the eight queens puzzle,for,if,pselect,pos,abs,concat,len
l Problem To prepare the simulation data for a sales management system, you are required to generate 4 tables (test_Salsimulation data,degree of randomness,writeinto the database,create,insert,rand,len
l Problem All records about the sales contracts of an enterprise are listed as below: The lost clients in a year are thchurn rate,file,import,group,len
An entity table can be imported into the memory to become an in-memory table, which is used like a normal table sequencein-memory table,memory,len,keys,row,find,index
Here’s how to use len() function.len