One Commit at a Time Series - 2
Linux
cp → copy files mv → move or rename files cat → view file contents locate → quickly find files by name SPRING vs SPRINGBOOT
JAVA
#Find ASCII value of a character public class AsciiValue { public static void main(String[] args) { char ch = 'a'; int ascii = ch; // You can also cast char to int int castAscii = (int) ch; System.out.println("The ASCII value of " + ch + " is: " + ascii); System.out.println("The ASCII value of " + ch + " is: " + castAscii); } } Output The ASCII value of a is: 97 The ASCII value of a is: 97 SQL
| Type | Full Form | Common Commands | Purpose |
|---|---|---|---|
| DDL | Data Definition Language | CREATE, ALTER, DROP, TRUNCATE | Define/modify database structure |
| DML | Data Manipulation Language | INSERT, UPDATE, DELETE, MERGE | Manage data inside tables |
| DQL | Data Query Language | SELECT | Retrieve data |
| DCL | Data Control Language | GRANT, REVOKE | Manage user permissions |
| TCL | Transaction Control Language | COMMIT, ROLLBACK, SAVEPOINT | Control transactions |
Reference :
https://www.geeksforgeeks.org/sql/sql-ddl-dql-dml-dcl-tcl-commands/?utm_source=copilot.com
https://www.geeksforgeeks.org/linux-unix/basic-linux-commands/
原文：https://www.a8q9.cn/en/article/one-commit-at-a-time-series-2-21f314.html