Erstellen in SQL
CREATE TABLE Staff(staffNo VARCHAR(5),
fName VARCHAR(15),
lName VARCHAR(15),
salary DECIMAL(7,2),
Gender CHAR
…..
);
naly moslih
CREATE TABLE Staff(staffNo VARCHAR(5),
fName VARCHAR(15),
lName VARCHAR(15),
salary DECIMAL(7,2),
Gender CHAR
…..
);CREATE TABLE table_name(
id INT AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(255), # String 255 chars max
date DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
longtext BLOB
);//to create a table
CREATE TABLE students
( student_id number(4) primary key,
last_name varchar2(30) NOT NULL,
course_id number(4) NULL );
//to insert value
INSERT INTO students VALUES (200, 'Jones', 101);
INSERT INTO students VALUES (201, 'Smith', 101);
INSERT INTO students VALUE (202, 'Lee' , 102);CREATE TABLE Persons (
PersonID int,
LastName varchar(255),
FirstName varchar(255),
Address varchar(255),
City varchar(255)
);#create a table and name it
CREATE TABLE test_name(
#create some vars in the table like id, name, age and etc.
id INT NOT NULL,
name VARCHAR,
age FLOAT NOT NULL
PRIMARY KEY(id) #define the primary key of the table(primary key is a var that will never be the same in each column in the table it will be "unique" rise up for each column
);create table DEPARTMENTS (
deptno number,
name varchar2(50) not null,
location varchar2(50),
constraint pk_departments primary key (deptno)
);