-- Crear la tabla de Estudiantes CREATE TABLE Estudiantes( ID_Estudiantes INT PRIMARY KEY, Nombre_del_alumno Varchar (50), Fecha_de_Nacimiento varchar (50), Grado varchar(50) ); -- Insertar datos de muestra en la tabla de Estudiantes INSERT INTO Estudiantes (ID_Estudiantes, Nombre_del_alumno, Fecha_de_Nacimiento, Grado) values (001, 'Cruz González', '2007-01-10', '1'), (002, 'Solivan Lopez', '2007-01-24', '2'), (003, 'Oliver Martinez', '2007-01-16', '2'), (004, 'Rosa Rojas', '2007-04-03', '1'), (005, 'Luz Montes', '2007-06-09', '2'), (006, 'Teli flores', '2008-05-05', '2'), (007, 'Carmen Campos', '2007-02-15', '1'), (008, 'Simon Wong', '2007-09-19', '1'), (009, 'Armando Ramos', '2007-02-02', '2'), (010, 'Adrian Rivera', '2007-01-01', '1'); SELECT * FROM Estudiantes; SELECT * FROM Estudiantes WHERE GRADO = '2'; -- Crear la tabla de CURSO CREATE TABLE CURSO( ID_del_curso INT PRIMARY KEY, Nombre_del_curso Varchar (50), Descripcion_del_curso Varchar (50) ); -- Insertar datos de muestra en la tabla de CURSO INSERT INTO CURSO (ID_del_curso, Nombre_del_curso, Descripcion_del_curso) values (234, 'Refrigeracion', 'Mantenimiento correctivo y preventivo'), (235, 'Electricidad', 'Eficiencia'), (236, 'Mecanica automotris','Mantenimiento correctivo y preventivo'), (237, 'Estilismo','buen trato y profesionalismo'), (238, 'Aux enfermeria','ayudante con conocimiento'), (239, 'Herramientas informaticas','word,power point y excel'), (240, 'Soldadura','oxicorte y soldadura con arco'), (241, 'Mantenimiento industrial','Mantenimiento correctivo y preventivo'), (242, 'Ingles','verbo tobe'), (243, 'electronica','programacion y elementos'); SELECT * FROM CURSO; SELECT * FROM CURSO WHERE Descripcion_del_curso = 'Mantenimiento correctivo y preventivo'; -- Crear la tabla de Profesores CREATE TABLE Profesores( ID_del_profesor INT PRIMARY KEY, Nombre_del_profesor Varchar (50), Materia_que_enseña Varchar (50) ); -- Insertar datos de muestra en la tabla de Profesores INSERT INTO Profesores (ID_del_profesor, Nombre_del_profesor, Materia_que_enseña) VALUES (21910, 'Hector Rosales', 'Algebra lineal'), (21911, 'Manuel Tovar', 'Fisica'), (21912, 'Raul Zembrano', 'Electricidad y magnetismo'), (21913, 'Eduardo Godoy', 'Herramientas informaticas'), (21914, 'Javier Valdes', 'Procesos productivos'), (21915, 'Rogelio Galvan', 'Elementos dimensionales'), (21916, 'Angelica Soto', 'Ingles'), (21917, 'Cristina Garcia', 'Expresion oral y escrita'), (21918, 'Arnoldo Treviño', 'Formacion Sociocultural'), (21919, 'Raul Zembrano', 'Tutoria grupal'); SELECT * FROM Profesores; SELECT * FROM Profesores WHERE Nombre_del_profesor = 'Raul Zembrano';
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MySQL is a open-source, free and very popular relational database management system which is developed, distributed and supported by Oracle corporation.
CREATE TABLE table_name (
column1 datatype,
column2 datatype,
....);
CREATE TABLE EMPLOYEE (
empId INTEGER PRIMARY KEY,
name TEXT NOT NULL,
dept TEXT NOT NULL
);
ALTER TABLE Table_name ADD column_name datatype;
INSERT INTO EMPLOYEE VALUES (0001, 'Dave', 'Sales');
TRUNCATE table table_name;
DROP TABLE table_name;
RENAME TABLE table_name1 to new_table_name1;
--Line1;
/* Line1,
Line2 */
INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...);
Note: Column names are optional.
INSERT INTO EMPLOYEE VALUES (0001, 'Ava', 'Sales');
SELECT column1, column2, ...
FROM table_name
[where condition];
SELECT * FROM EMPLOYEE where dept ='sales';
UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;
UPDATE EMPLOYEE SET dept = 'Sales' WHERE empId='0001';
DELETE FROM table_name where condition;
DELETE from EMPLOYEE where empId='0001';
CREATE INDEX index_name on table_name(column_name);
CREATE UNIQUE INDEX index_name on table_name(column_name);
DROP INDEX index_name ON table_name;
Creating a View:
CREATE VIEW View_name AS
Query;
SELECT * FROM View_name;
ALTER View View_name AS
Query;
DROP VIEW View_name;
CREATE TRIGGER trigger_name trigger_time trigger_event
ON tbl_name FOR EACH ROW [trigger_order] trigger_body
/* where
trigger_time: { BEFORE | AFTER }
trigger_event: { INSERT | UPDATE | DELETE }
trigger_order: { FOLLOWS | PRECEDES } */
DROP TRIGGER [IF EXISTS] trigger_name;
CREATE PROCEDURE sp_name(p1 datatype)
BEGIN
/*Stored procedure code*/
END;
CALL sp_name;
DROP PROCEDURE sp_name;
SELECT * FROM TABLE1 INNER JOIN TABLE2 where condition;
SELECT * FROM TABLE1 LEFT JOIN TABLE2 ON condition;
SELECT * FROM TABLE1 RIGHT JOIN TABLE2 ON condition;
SELECT select_list from TABLE1 CROSS JOIN TABLE2;