db2, Sql Server - rextester

db2

--Sql Server 2014 Express Edition
--Batches are separated by 'go'

select @@version as 'sql server version'
create table employee (
    lname varchar(20) not null,
    fname varchar(20) not null,
    ssn varchar(9),
    superssn varchar(9),
    bdate date,
    address varchar(20),
    sex varchar(1),
    salary decimal(4),
    dno varchar(1),
    primary key (ssn) ,
    --foreign key (superssn) references employee(ssn)
    --foreign key (dno) references department(dnumber)  
);

create table department (
    dname varchar(20) not null,
    mgrssn varchar(9),
    mgrstartdate date,
    dnumber decimal(4),
    primary key (dnumber) , 
);

create table deptlocations (
    dlocation varchar(15),
    dnumber decimal(4),
    primary key (dlocation) ,
    --foreing key (dnumber) references department (dnumber)  
);

create table project(
    pname varchar(20) not null,
    pnumber varchar(2),
    plocation varchar(15),
    dnum varchar(1),
    primary key (pnumber) ,
    --foreing key (dnum) references department(dnumber)  
);

create table workson (
    deptname varchar(20) not null,
    pno varchar(1),
    dnumber decimal(4),
    --foreing key (essn) references employee(ssn)  
    --foreing key (pno) references project (pnumber)
);

create table dependant (
    deptname varchar(20) not null,
    pno varchar(1),
    dnumber decimal(4),
    primary key (dnumber) ,
    --foreing key (pno) references projects(pnumber)  
);


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