MSSQL noobies query example - basic

mssql-example-queries.md

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Database Query | Table Query | Data Query

DATABASE

CREATE DATABASE

CREATE DATABASE TestDB;

DROP DATABASE

DROP DATABASE TestDB;

BACKUP DATABASE

BACKUP DATABASE TestDB
TO DISK = 'C:\backups\TestDB.bak';

TABLE

CREATE TABLE

CREATE TABLE Persons (
    PersonID int,
    LastName varchar(255),
    FirstName varchar(255),
    Address varchar(255),
    City varchar(255) 
);

DROP TABLE

DROP TABLE Persons;

TRUNCATE TABLE

DELETE DATA INSIDE TABLE, NOT TABLE ITSELF

TRUNCATE TABLE Persons;

DATA

INSERT DATA

INSERT INTO TestDB.dbo.Persons (PersonID, LastName, FirstName, Address, City) VALUES (3, 'Last', 'First', 'Add', 'City');

DELETE DATA

DELETE FROM TestDB.dbo.Persons WHERE PersonID = 3;

UPDATE DATA

UPDATE TestDB.dbo.Persons
SET LastName = 'Schmidt', Cit y= 'Frankfurt'
WHERE PersonID = 1;