SQL server database materials
SQL server database is not widely used in China except the government, large state-owned enterprises and foreign enterprises, so it has not been studied in depth. Here are some simple reference materials for follow-up reference:
SQL server common management and maintenance command: https://blog.csdn.net/qq_30764991/article/details/80783943
SQL server basic use command: https://www.cnblogs.com/goto/articles/2608160.html
Introduction to basic concepts of SQL server: https://www.w3cschool.cn/sqlserver/
