diff --git a/CSVs/Department.csv b/CSVs/Department.csv
new file mode 100644
index 0000000..175db42
--- /dev/null
+++ b/CSVs/Department.csv
@@ -0,0 +1,4 @@
+Dname,Dnumber,Mgr_ssn,Mgr_start_date
+Research,5,333445555,1988-05-22
+Administration,4,987654321,1995-01-01
+Headquarters,1,888665555,1981-06-19
diff --git a/CSVs/Dependent.csv b/CSVs/Dependent.csv
new file mode 100644
index 0000000..f86a6d1
--- /dev/null
+++ b/CSVs/Dependent.csv
@@ -0,0 +1,8 @@
+Essn,Dependent_name,Sex,Bdate,Relationship
+333445555,Alice,F,1986-04-05,Daughter
+333445555,Theodore,M,1983-10-25,Son
+333445555,Joy,F,1958-05-03,Spouse
+987654321,Abner,M,1942-02-28,Spouse
+123456789,Michael,M,1988-01-04,Son
+123456789,Alice,F,1988-12-30,Daughter
+123456789,Elizabeth,F,1967-05-05,Spouse
diff --git a/CSVs/Dept_Locations.csv b/CSVs/Dept_Locations.csv
new file mode 100644
index 0000000..4871aae
--- /dev/null
+++ b/CSVs/Dept_Locations.csv
@@ -0,0 +1,6 @@
+Dnumber,Dlocation
+1,Houston
+4,Stafford
+5,Bellaire
+5,Sugarland
+5,Houston
diff --git a/CSVs/Employee.csv b/CSVs/Employee.csv
new file mode 100644
index 0000000..66b5a5d
--- /dev/null
+++ b/CSVs/Employee.csv
@@ -0,0 +1,9 @@
+Fname,Minit,Lname,Ssn,Bdate,Address,Sex,Salary,Super_ssn,Dno
+John,B,Smith,123456789,1965-01-09,"731 Fondren, Houston, TX",M,30000,333445555,5
+Franklin,T,Wong,3334455555,1955-12-08,"638 Voss, Houston, TX",M,40000,888665555,5
+Alicia,J,Zeleya,999887777,1968-01-19,"3321 Castle, Spring, TX",F,25000,987654321,4
+Jennifer,S,Wallace,987654321,1941-06-20,"291 Berry, Bellaire, TX",F,43000,888665555,4
+Ramesh,K,Narayan,666884444,1962-09-15,"975 Fire Oak, Humble, TX",M,38000,3334455555,5
+Joyce,A,English,453453453,1972-07-31,"5631 Rice, Houston, TX",F,25000,333445555,5
+Ahmad,V,Jabbar,987987987,1969-03-29,"980 Dallas, Houston, TX",M,25000,987654321,4
+James,E,Borg,888665555,1937-11-10,"450 Stone, Houston, TX",M,55000,NULL,1
diff --git a/CSVs/Project.csv b/CSVs/Project.csv
new file mode 100644
index 0000000..4a5671d
--- /dev/null
+++ b/CSVs/Project.csv
@@ -0,0 +1,7 @@
+Pname,Pnumber,Plocation,Dnum
+ProductX,1,Bellaire,5
+ProductY,2,Sugarland,5
+ProductZ,3,Houston,5
+Computerization,10,Stafford,4
+Reorganization,20,Houston,1
+Newbenefits,30,Stafford,4
diff --git a/CSVs/Works_on.csv b/CSVs/Works_on.csv
new file mode 100644
index 0000000..e721bdd
--- /dev/null
+++ b/CSVs/Works_on.csv
@@ -0,0 +1,17 @@
+Essn,Pno,Hours
+123456789,1,32.5
+123456789,2,7.5
+666884444,3,40.0
+453453453,1,20.0
+453453453,2,20.0
+33344555,2,10.0
+33344555,3,10.0
+33344555,10,10.0
+33344555,20,10.0
+999887777,30,30.0
+999887777,10,10.0
+987987987,10,35.0
+987987987,30,5.0
+987654321,30,20.0
+987654321,20,15.0
+888665555,20,NULL
diff --git a/asg_rel_alg3.docx b/asg_rel_alg3.docx
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index 0000000..53288a0
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diff --git a/asg_rel_alg4.pdf b/asg_rel_alg4.pdf
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index 0000000..20e9f07
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