How do I change ER model to SQL?

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I am not very familiar to SQL
The following infomration are from my special homework.
I come here to ask some hints about SQL language

***The integrity rules are as following:
1.Each employee may be managed by one other employee
2.Each employee may manage one or more other employees
3.Each employee must work in a single department
4.Each department may be assigned one or more employees

Emp:
EmpNo Number(4)
Name Varchar2(10)
Job Varchar2(9)
Sal Number(7,2)
Comm Number(7,2)
HireDate Date
Mgr Number(4)
DeptNo Number(2)

Dept:
DeptNo Number(2)
Name Varchar2(14)
Location Varchar2(13)

What I have tried:

I have tried to make these information to relation schema and relation model. But its still difficult for me to transformt o SQL.

Posted 12-Dec-16 16:01pm

Webber Chiang

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RedDk 13-Dec-16 11:18am

Here in CPQA, start by showing some code ... like this:

USE [cpqaAnswers]
GO

CREATE TABLE [cpqaAnswers].[cpqa].[tbl_WC_sampleSimple_Emp](
EmpNo int,
Name nvarchar(10),
Job nvarchar(9),
Sal decimal(7,2),
Comm decimal(7,2),
HireDate Date,
Mgr int,
DeptNo int
)

CREATE TABLE [cpqaAnswers].[cpqa].[tbl_WC_sampleSimple_Dept](
DeptNo int,
Name nvarchar(14),
Location nvarchar(13)
)

SELECT [EmpNo]
,[Name]
,[Job]
,[Sal]
,[Comm]
,[HireDate]
,[Mgr]
,[DeptNo]
FROM [cpqaAnswers].[cpqa].[tbl_WC_sampleSimple_Emp]
GO

SELECT [DeptNo]
,[Name]
,[Location]
FROM [cpqaAnswers].[cpqa].[tbl_WC_sampleSimple_Dept]
GO

And you really need some data too. So that someone can see what it is you're proposing to do, knowing you think there's an answer to your problem.

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