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mysql> show databases;
shows databases

mysql> use cat_db;
Shows cat database

mysql> show tables;

mysql> SELECT DATABASE();
shows current database

mysql> describe cats;
Shows table info

mysql> show columns in cats;

CREATE TABLE students (
id INTEGER(11) AUTO_INCREMENT NOT NULL,
name VARCHAR(30) NOT NULL,
age INTEGER(10));


SQL PRIMARY KEY Constraint on CREATE TABLE

CREATE TABLE students( 
id INTEGER(11) AUTO_INCREMENT NOT NULL, 
name VARCHAR(30) NOT NULL, 
age INTEGER(10), 
location VARCHAR(30) NOT NULL, 
PRIMARY KEY(id) 
);


INSERT INTO tbl_name
   (a,b,c)
VALUES
   (1,2,3),
   (4,5,6),
   (7,8,9);
   
   
   mysql> select * from students where id in (2,3);
   
   Updating records: UPDATE [table] SET [column] = '[updated-value]' WHERE [column] = [value];
   
   Update students set age = 22;
   Updates all