1. be familiar with basic sql statement syntax, such as insert select, update, delete, create table, alter table, drop table
Such as where, having, group by, in, not in, the basic function sum (), avg (), max (), min (), count ()
2. Basic grasp a single table or two tables query (generally simple exercises)
Textbooks, teaching materials, videos, plenty of online resources is not listed, systematic over again
3. Advanced Query (multi-table subqueries)
50d road classic sql exercises
Some personal answer: 1.https: //mp.csdn.net/postedit/88570583
2.https://mp.csdn.net/postedit/88635999
Understanding of some function, such as over (), rownum, rank (), like, to_char (), to_date (), nvl (), round (), cast ()
Advanced query above basically done no problem
Combat: https: //mp.csdn.net/postedit/88845794
https://mp.csdn.net/postedit/88846309
https://blog.csdn.net/xyb100/article/details/88862399
4. stored procedures, functions, triggers, variables, cursors (currently learning)
Recommended books: oracle pl / sql instance fine solution (Fourth Edition)
Exercise 4.1 stored procedure (not started)
5..sql optimization (not started)
6. Project practiced hand (not
started) ----------------
Disclaimer: This article is CSDN blogger "xyb100 'original article, follow the CC 4.0 BY-SA copyright agreement, reproduced attach the original source link and this statement.
Original link: https: //blog.csdn.net/xyb100/article/details/88861421