用sqlite3创建数据库实现数据固化功能

[ouyangxi@DESKTOP-QNJ4U2U code]$ sqlite3 tax.db
SQLite version 3.22.0 2018-01-22 18:45:57
Enter ".help" for usage hints.
sqlite>

sqlite>  create table tax(
   ...> id integer PRIMARY KEY AUTOINCREMENT,    //序号的自增
   ...> startTime timestamp,              //创建时间
   ...> money varchar(20),
   ...>  unite varchar(20)
   ...>  );
            

sqlite> create table tax1(
   ...>  id integer PRIMARY KEY AUTOINCREMENT,
   ...>  startTime timestamp,
   ...>  money varchar(20),
   ...> unite varchar(20)
   ...>  );

sqlite> .tables
tax   tax1         

sqlite> drop table tax1;
sqlite> .tables
tax

sqlite>  insert into tax(startTime,money,unite) values (current_timestamp,‘20‘,‘元‘);
sqlite>  insert into tax(startTime,money,unite) values (current_timestamp,‘30‘,‘元‘);
sqlite>  insert into tax(startTime,money,unite) values (current_timestamp,‘40‘,‘元‘);

sqlite> select * from tax;//全部查询
sqlite> select * from tax where money=‘20‘;//条件查询
sqlite> select id, datetime(startTime),money,unite from tax;//日期查询