Assignment of database
- 1. A company DETAC of construction and trading The main interface
- 2. WELCOME
- 3. Contact 2.1.5 FORMS 2.1.6 reports 3- Implementation and loading 3.1 DBMS Software Selection 4-Testing and Evaluation 4.1 Create the Logical Design 1- Database Life Cycle (DBLC) 1-1 Database Initial study 1.1.1 Identify problems and obstacles. 1.1.2 Objectives: 1.1.3 Scope and Boundaries: 2-1 Database Design 2.1 .1 Normalization 2.1.2 ERD 2.1.3 Tables 2.1.4 Queries 5-Operation 6- Maintenance and Evaluation 6.1 Create the Physical Design
- 4. 1-Database Life Cycle (DBLC) Conceptual Design ER-Diagram / Normalization DBMS Software Selection Create the Logical Design Create the Physical Design Database Initial study Database Design Implementation and loading Testing and Evaluation Operation Maintenance and Evaluation
- 5. In this first stage of the Initial study for a database, we have identified the current study of the operation of the system within the company how and why the current system has failed. The overall objective of this study to the database is as follows: • Analysis the situation in the company. • Identify problems and obstacles. • Setting goals. • Identify the scope and limits. 1.1 Database Initial study The company situation describes When examining the current system in this company and found that work in a variety of departments and administration departments are hiring their employees as needed, after recording a full data are the Exchange number for each employee and the follow-up to the employee in terms of attendance and payment of monthly salaries for each of employee. In this company is dealing with customers by manual work any models is to mobilize and be Questions and reports Manual ,this work was very difficult and it takes a great time for reports and correspondence From here behind us design system that helps this company in the extraction of reports and INQUIRIES easy manner and in a short time
- 6. Through the company's existing situation analysis it found that the system depends entirely on the manual system in all transactions company's . and we found inconsistency in data entry or in hand written orders. This has the effect of not only causing problems with customer service but also marking information unable be used for reporting or finding trends with data discovery . reporting and checking that data is robust can be timely and expensive .this is often an area where significant money can be saved by automation as well as loss and damage to files and documents, whether natural or human factors and repeating the mistakes in queries and reports 1.1.1 Identify problems and obstacles.
- 7. 1.1.2 Objectives: 1.1.3 Scope and Boundaries: In this stage, to determine the scope and limits of the system: We have identified the scope of the system and designed it according to operational requirements. The entire design data and one or more departments within the organization, including the organization so that helps to identify the required data structures, and the type and number of entities base, and the actual size of the database according to the required data 1-Conversion of manual system to a computer with the creation of a database covering all the company's transactions Base 2- Improved data access to users 3- Reduced data entry, storage, and retrieval costs. 4- Greater integrity of data and improve security 5- keeping electronic records - making it easier to get the information, and generate reports to meet the tax requirements and the preparation of legal reports
- 8. 2-1 Database Design • In this second stage, we have designed the sample database that will support the company's operations and goals. It is the most important stage (DBLC): to make sure that the proposed system will meet the requirements of the user and the system. The dependence on that: • The easy-relevant for the analysis and design of a larger system, the database design process. Input system must be according to the required output • The establishment of procedures that will help in the conversion of data within the database to useful information.
- 9. 2.1 .1 Normalization First Normal Form (1NF) Normal Form (NF) Employees= nu_EM, name_EM, date_bir_EM, gender_EM, nat_EM, mar_EM, pass_EM, add_EM, pho_EM, qual_EM,Major,accou_EM { nu_ban, name_ban, add_ban, phon_ban, email_ban, un_cont, name_Dep, phon_Dep, addr_Dep, date_st_work, date_end_work, durat_cont, salary, date_pr_abs, case_pr_abs }. Employees= (nu_EM, name_EM, date_bir_EM, gender_EM, nat_EM, mar_EM, pass_EM, add_EM, pho_EM, qual_EM, major, accou_EM, nu_ban, name_ban, add_ban, phon_ban, email_ban, un_cont, name_Dep, phon_Dep, addr_Dep, date_st_work, date_end_work, durat_cont, salary, date_pr_abs, case_pr_abs ).
- 10. Second Normal Form (2NF) Data_employees= (EM_NUM , name_EM, date_bir_EM, gender_EM, nat_EM, mar_EM, pass_EM, add_EM, pho_EM, qual_EM, major, accou_EM, nu_ban) Bank= (nu_ban, name_ban, add_ban, phon_ban, email_ban, Finance_EMPL= (un_cont, durat_cont, date_st_work, date_end_work, salary, data_cont, un_EM, date_pr_abs, case_pr_abs) Department= (nu_dep, name_Dep, phon_Dep, addr_Dep,).
- 11. Third Normal Form (3NF) Data_employee= (EM_nu, EM_NAME, EM_date_bir, EM_gender, EM_NAT, EM_MAR, EM_pass, EM_add , EM_phon, EM_qual, BAN_NUM, EM_Accou) Nationality= (NAT_NUM, NAT_NAME) Qualification= (QUAL_NUM, QUAL_NAME) Bank= (BAN_NUM, EM_NUM, BAN_ADDR, phon_ban, Email_ban ) Finance_EMPL= (Cont_NUM, EM_NUM, date_cont, Dep_NU, date_st_work, date_end_work, salary ) Pres_absen= (EM_NUM, Date_pr_ads, Case_pr_abs) Department= (Dep_NUM, Dep_NAM, Dep_phon, Dep_ADDR).
- 12. No. Field Name Type Length Key 1 EM_NUM Auto Number Long Integer Primary Key 2 EM_NAME Text 50 3 EM_date_bir Date/Time Short Time 4 EM_gender Yes/No 5 EM_NAT Short text 20 6 EM_MAR Yes/No 7 EM_pass Number 10 8 EM_add Text 25 9 EM_phon Number 25 10 EM_qual Number Long Integer 11 BAN_NUM Number Long Integer 12 EM_Accou Number 25 Data Dictionary Table of Data_employee
- 13. No. Field Name Type Length Key 1 NAT_NUM Auto Number Long Integer Primary Key 2 NAT_NAME Text 40 Table of Nationality No. Field Name Type Length Key 1 QUAL_NUM Auto Number Long Integer Primary Key 2 QUAL_NAME Text 40 Table of Qualification
- 14. No. Field Name Type Length Key 1 BAN_NUM Auto Number Long Integer Primary Key 2 BAN_NAME Text 50 3 BAN_ADDR Text Long Integer 4 phon_ban Number Long Integer 5 Email_ban Text 50 Table of Bank No. Field Name Type Length Key 1 Dep_NUM Auto Number Long Integer Primary Key 2 Dep_NAM Text 50 3 Dep_phon number 50 4 Dep_ADDR number Long Integer Table of Department
- 15. No. Field Name Type Length Key 1 Cont_NUM Auto Number Long Integer Primary Key 2 EM_NUM number Short Time 3 date_cont Date/Time Short Time Foreign key 4 Dep_NU number Long Integer Foreign key 5 date_st_work Date/Time Short Time 6 date_end_work Date/Time Short Time 7 salary number No. Field Name Type Length Key 1 EM_NUM Number Long Integer Primary Key 2 Date_pr_ads Date/Time Short time Foreign key 3 Case_pr_abs Yes/No - foreign key Table of Finance_Empl Table of Pres_absen
- 16. Cont.. ER-Diagram After the normalization process was reached following entities and the relationship between them are shown in the following figure1
- 17. follow up Data_Employee EM_add EM_NAME EM_date_bir EM_gender EM_pass EM_NATEM_NUM EM_MAR EM_phon EM_qual BAN_NUM EM_Accou Cashing FINANCE_EMPL EM_NUM Date_st_workDep_NUM Date_cont Date_end_work Cont_NUM Salary 1 1 PRES_ABSEN Case_pr_abs EM_NUM Date_pr_ads 1 M work in 1 1 Department Dep_NUM Dep_ADDRDep_phonDep_NAM Nationality NAT_NAME NAT_NUM have M 1 QUAL_NAME QUAL_NUM have M 1 Banks BAN_NUM BAN_NAME BAN_ADDR phon_ban Email_ban registered M 1 Qualification ERD
- 18. Implementation and loading DBMS Software Selection Testing and Evaluation At this stage, the database contains a series of instructions that create separate tables, attributes, fields, views, indexes, security constraints, and storage performance and design guidelines. It has been selected ACCESS database to be a project company database design. The system was tested after the database design and the introduction of the logical data were evaluated after obtaining positive results.
- 19. At this stage, the database will be passed the evaluation stage, is considered ready for action. At this point, the database, the management, users, and application programs constitute a complete information system. The beginning of the operational phase always begins the process of evolution of the system. Operation Maintenance and Evaluation At this stage, there must be fully prepared to carry out routine maintenance work within the database. Some of the required periodic maintenance work include: • preventive maintenance (backup). • Corrective Maintenance (PCR). • Maintenance of adaptive (enhanced performance, adding entities and attributes). • Set the access and maintenance of the new and old users permissions.
- 20. 1-Data employee Database deign Tables and database sheet view
- 23. 6-Nationality
- 24. 7-Pres_absen
- 25. A relationship, in the context of databases, is a situation that exists between two relational database tables when one table has a foreign key that references the primary key of the other table Relationships allow relational databases to split and store data in different tables, while linking disparate data items. Relationship
- 26. 1-Data_empl _pres5 Queries SELECT Data_Employee.EM_NUM, Data_Employee.EM_NAME, pres_absen.Date_pr_ads, pres_absen.Case_pr_abs FROM Data_Employee, pres_absen WHERE ( Data_Employee.EM_NUM = pres_absen.EM_NUM) and (pres_absen.Date_pr_ads=#1-2-2016#) and ( pres_absen.Case_pr_abs=true );
- 27. 2-Dataa _empl_date_end SELECT Data_Employee.EM_NUM, Data_Employee.EM_NAME, financ_empl.Cont_NUM, financ_empl.Date_end_work FROM Data_Employee, financ_empl WHERE ( financ_empl.EM_NUM = Data_Employee.EM_NUM) and (financ_empl.Date_end_work=#1-1-2018#); 3-Data of employee by bank SELECT Data_Employee.EM_NUM, Data_Employee.EM_NAME, financ_empl.Salary, Banks.BAN_NAME FROM Data_Employee, financ_empl, Banks WHERE (Banks.BAN_NUM = Data_Employee.BAN_NUM) and ( financ_empl.EM_NUM = Data_Employee.EM_NUM) and Banks.BAN_NAME='cimb';
- 28. 4-Data_employee by qual SELECT Data_Employee.EM_NUM, Data_Employee.EM_NAME, Banks.BAN_NAME, Data_Employee.EM_accon, financ_empl.Salary FROM Data_Employee, Banks, financ_empl WHERE (( Data_Employee.BAN_NUM = Banks.BAN_NUM) and ( financ_empl.EM_NUM = Data_Employee.EM_NUM ));
- 29. 5-Data employee by salary SELECT Data_Employee.EM_NUM, Data_Employee.EM_NAME, financ_empl.Salary FROM Data_Employee, financ_empl WHERE (financ_empl.EM_NUM = Data_Employee.EM_NUM) and (Salary BETWEEN 1000 and 2000);
- 30. 6-Data_empl_department SELECT Data_Employee.EM_NUM, Data_Employee.EM_NAME, Department.Dep_NAM FROM Data_Employee, Department, financ_empl WHERE (Department.Dep_NUM = financ_empl.Dep_NU) and ( financ_empl.EM_NUM = Data_Employee.EM_NUM ) and (Department.Dep_NAM="computer");
- 31. 7-Data_empl_dep_pre SELECT Data_Employee.EM_NUM, Data_Employee.EM_NAME, Department.Dep_NAM, pres_absen.date_pr_ads, pres_absen.case_pr_abs FROM Data_Employee, Department, pres_absen, financ_empl WHERE ( Department.Dep_NUM = financ_empl.Dep_NU)and ( Data_Employee.EM_NUM = pres_absen.EM_NUM) and (financ_empl.EM_NUM = Data_Employee.EM_NUM) and (Department.Dep_NAM="computer") and (pres_absen.Case_pr_abs=true);
- 32. FORMS 1-Form Data of Banks 2-Form Data of Employee
- 33. 4-From of Nationality3-Form of Department
- 34. 5-Form of presence and absent 6-Form of Qualification
- 35. 7-Form of financ
- 36. 1- Report About Officer Data Attendance In Specific Date reports
- 37. 2- Report About Data of officer which their contract out of date in specific date
- 38. 3- Report About Officer Data According To Their Banks 4- Data Of Officer Financial Matters
- 39. 5- Report Of Employee They Take Salary Ranging Between 1000-2000 6- Report About Officer Data According To Their Department
- 40. 7- Report Of Officer Data According To Their Attendance In Specific Time And Specific Department
- 41. Thank you