Bicycle rental system error set 3

1. java. SQL. Date and Java. util. Date
When format conversion is required, string to date, and the date selection box on the foreground page is inserted into the database, java. util. date is used.

2. Use DOS to operate MySQL commands

Log on to the local database using MySQL-uroot-proot

Show databases; displays all local databases

Use test; use the database test, and the database changed is displayed successfully.

Select databases (); select the current database, similar to use test

Show tables; displays all tables in the current database

Describe user; displays the table structure of the User table.

Select * from user; displays data in the User table.

 

Bicycle rental system error set 3