What is HR schema in Oracle?

What is HR schema in Oracle?

This section lists the names of the scripts that create the human resources ( HR ) schema and describes the objects in the schema. Table 4-1 lists the HR scripts in alphabetical order.

How does schema connect to HR in Oracle?

Connecting to Oracle Database as User HR from SQL*Plus. Connecting to Oracle Database as User HR from SQL Developer….Connecting to Oracle Database as User HR from SQL Developer

  1. For Connection Name, enter hr_conn .
  2. For Username, enter HR .
  3. For Password, enter the password for the HR account.

How do I download HR schema in Oracle?

Installing the HR Schema

  1. Log on to SQL*Plus as SYS and connect using the AS SYSDBA privilege.
  2. To run the hr_main.sql script, use the following command: SQL> @?/demo/schema/human_resources/hr_main.sql.
  3. Enter a secure password for HR specify password for HR as parameter 1: Enter value for 1:

What is HR schema in database?

The HR schema contains seven tables representing a data model of a fictitious Human Resources department. The EMPLOYEES table, which stores details of the staff, and the DEPARTMENTS table, which contains the details of the departments in the organization and so on so forth.

What is Orclpdb?

In this statement ‘ORCLPDB’ is the name of the pluggable database. And it has all the sample schemas.

How do I connect to HR schema?

So let’s see the steps for unlocking the HR schema in oracle Database 12c.

  1. Step 1: Get the Pluggable database name and service name.
  2. Step 2: Update tnsname.
  3. Step3: Switch the container from CBD$ROOT to PDBORCL.
  4. Step 4: Open the pluggable database PDBORCL.
  5. Step 5: Unlock the HR user.

How do I connect to a HR schema in Oracle 12c?

How do you unlock the HR schema in Oracle 18c XE?

Let’s see each of these steps in detail.

  1. Step 1: Find out the Container ID.
  2. STEP 2: Find out the service name.
  3. Step 3: Create an entry in TNSNAMES. ora file.
  4. Restart the listener.
  5. Step 4: Switch from Container database to Pluggable database.
  6. Step 5: Unlock the HR user.

How do I list all the tables in a schema?

All Database Tables If you want to list all tables in the Oracle database, you can query the dba_tables view. SELECT table_name FROM dba_tables ORDER BY table_name ASC; This view (and all others starting with dba_) are meant for database administrators.

How do you create a table in HR schema in Oracle?


  1. First, specify the table name and schema name to which the new table belongs on the CREATE TABLE clause.
  2. Second, list all columns of the table within the parentheses.
  3. Third, add table constraints if applicable e.g., primary key, foreign key, check.