add files from day 2

db/3_sem/day_2/introduction_to_security.sql

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+-- Queuries to create test table and change the permissions of the underpriviledged user
+
+use IBZ;
+
+create table SprechendeTiere
+(
+	ID			int identity(1,1) not null,
+	Tierame		varchar(50)
+	constraint pk_sprechende_tiere primary key (ID)
+);
+
+
+insert into SprechendeTiere(Tierame)
+values ('Einhorn');
+
+-- Grant
+
+grant select on SprechendeTiere to ibzadmin;
+
+grant delete on SprechendeTiere to ibzadmin;
+
+grant update on SprechendeTiere to ibzadmin;
+
+grant all on SprechendeTiere to ibzadmin;

db/3_sem/day_2/underpriviledged_user.sql

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+-- Test Queries for an unprivileged user
+
+use IBZ;
+
+select * from SprechendeTiere;
+
+delete SprechendeTiere
+where Tierame='Einhorn';
+
+update SprechendeTiere
+	set Tierame='Einhörner'
+	where Tierame='Einhorn';
+
+
+insert into SprechendeTiere(Tierame)
+values ('Papagei');