Difference between revisions of "HR.DEPARTMENTS (table)"
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{| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | {| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | ||
− | |- | + | |- valign="top" |
| '''Table | | '''Table | ||
| HR.DEPARTMENTS | | HR.DEPARTMENTS | ||
− | |- | + | |- valign="top" |
+ | | '''Description | ||
+ | | Departments table that shows details of departments where employees | ||
+ | work. Contains 27 rows; references with locations, employees, and job_history tables. | ||
|} | |} | ||
− | + | === Columns === | |
{| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | {| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | ||
|- style="background:silver" | |- style="background:silver" | ||
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| '''Nullable | | '''Nullable | ||
| '''Default | | '''Default | ||
− | | ''' | + | | '''Description |
− | + | ||
− | + | |- valign="top" | |
− | |- | ||
| DEPARTMENT_ID | | DEPARTMENT_ID | ||
| NUMBER(4, 0) | | NUMBER(4, 0) | ||
| not null | | not null | ||
| | | | ||
− | | | + | | Primary key column of departments table. |
− | + | |- valign="top" | |
− | |- | ||
| DEPARTMENT_NAME | | DEPARTMENT_NAME | ||
| VARCHAR2(30) | | VARCHAR2(30) | ||
| not null | | not null | ||
| | | | ||
− | | | + | | A not null column that shows name of a department. Administration, |
− | + | Marketing, Purchasing, Human Resources, Shipping, IT, Executive, Public | |
− | |- | + | Relations, Sales, Finance, and Accounting. |
+ | |- valign="top" | ||
| MANAGER_ID | | MANAGER_ID | ||
| NUMBER(6, 0) | | NUMBER(6, 0) | ||
| null | | null | ||
| | | | ||
− | | | + | | Manager_id of a department. Foreign key to employee_id column of employees table. The manager_id column of the employee table references this column. |
− | + | |- valign="top" | |
− | |- | ||
| LOCATION_ID | | LOCATION_ID | ||
| NUMBER(4, 0) | | NUMBER(4, 0) | ||
| null | | null | ||
| | | | ||
+ | | Location id where a department is located. Foreign key to location_id column of locations table. | ||
+ | |} | ||
+ | |||
+ | === Primary Key === | ||
+ | {| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | ||
+ | |- style="background:silver" | ||
+ | | '''Primary Key | ||
+ | | '''Columns | ||
+ | |- valign="top" | ||
+ | | DEPT_ID_PK | ||
+ | | DEPARTMENT_ID | ||
+ | |} | ||
+ | |||
+ | === Indexes === | ||
+ | {| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | ||
+ | |- style="background:silver" | ||
+ | | '''Index | ||
+ | | '''Type | ||
+ | | '''Columns | ||
+ | |||
+ | |- valign="top" | ||
+ | | DEPT_LOCATION_IX | ||
| | | | ||
− | | | + | | LOCATION_ID |
|} | |} | ||
+ | === Check Constraints === | ||
+ | {| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | ||
+ | |- style="background:silver" | ||
+ | | '''Check Constraint | ||
+ | | '''Expression | ||
+ | | '''Description | ||
+ | |- valign="top" | ||
+ | | DEPT_NAME_NN | ||
+ | | "DEPARTMENT_NAME" IS NOT NULL | ||
+ | | | ||
+ | |} | ||
+ | === Foreign Keys === | ||
{| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | {| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | ||
|- style="background:silver" | |- style="background:silver" | ||
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| '''Column | | '''Column | ||
| '''Referenced Column | | '''Referenced Column | ||
− | + | ||
− | |- | + | |- valign="top" |
| [[HR.LOCATIONS_(table)|HR.LOCATIONS]] | | [[HR.LOCATIONS_(table)|HR.LOCATIONS]] | ||
| LOCATION_ID | | LOCATION_ID | ||
| LOCATION_ID | | LOCATION_ID | ||
− | |- | + | |- valign="top" |
| [[HR.EMPLOYEES_(table)|HR.EMPLOYEES]] | | [[HR.EMPLOYEES_(table)|HR.EMPLOYEES]] | ||
| MANAGER_ID | | MANAGER_ID | ||
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|} | |} | ||
− | + | === Detail Tables === | |
{| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | {| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | ||
|- style="background:silver" | |- style="background:silver" | ||
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| '''Column | | '''Column | ||
| '''Referencing Column | | '''Referencing Column | ||
− | + | ||
− | |- | + | |- valign="top" |
| [[HR.EMPLOYEES_(table)|HR.EMPLOYEES]] | | [[HR.EMPLOYEES_(table)|HR.EMPLOYEES]] | ||
| DEPARTMENT_ID | | DEPARTMENT_ID | ||
| DEPARTMENT_ID | | DEPARTMENT_ID | ||
− | |- | + | |- valign="top" |
| [[HR.JOB_HISTORY_(table)|HR.JOB_HISTORY]] | | [[HR.JOB_HISTORY_(table)|HR.JOB_HISTORY]] | ||
| DEPARTMENT_ID | | DEPARTMENT_ID | ||
| DEPARTMENT_ID | | DEPARTMENT_ID | ||
|} | |} |
Latest revision as of 11:33, 27 August 2011
Contents
wikibot[edit]
Table | HR.DEPARTMENTS |
Description | Departments table that shows details of departments where employees
work. Contains 27 rows; references with locations, employees, and job_history tables. |
Columns[edit]
Column | Data Type | Nullable | Default | Description |
DEPARTMENT_ID | NUMBER(4, 0) | not null | Primary key column of departments table. | |
DEPARTMENT_NAME | VARCHAR2(30) | not null | A not null column that shows name of a department. Administration,
Marketing, Purchasing, Human Resources, Shipping, IT, Executive, Public Relations, Sales, Finance, and Accounting. | |
MANAGER_ID | NUMBER(6, 0) | null | Manager_id of a department. Foreign key to employee_id column of employees table. The manager_id column of the employee table references this column. | |
LOCATION_ID | NUMBER(4, 0) | null | Location id where a department is located. Foreign key to location_id column of locations table. |
Primary Key[edit]
Primary Key | Columns |
DEPT_ID_PK | DEPARTMENT_ID |
Indexes[edit]
Index | Type | Columns |
DEPT_LOCATION_IX | LOCATION_ID |
Check Constraints[edit]
Check Constraint | Expression | Description |
DEPT_NAME_NN | "DEPARTMENT_NAME" IS NOT NULL |
Foreign Keys[edit]
Relation | Column | Referenced Column |
HR.LOCATIONS | LOCATION_ID | LOCATION_ID |
HR.EMPLOYEES | MANAGER_ID | EMPLOYEE_ID |
Detail Tables[edit]
Detail Table | Column | Referencing Column |
HR.EMPLOYEES | DEPARTMENT_ID | DEPARTMENT_ID |
HR.JOB_HISTORY | DEPARTMENT_ID | DEPARTMENT_ID |