Sql queries on employee and department table pdf

Sql queries on employee and department table pdf
DEPARTMENT_ID column in the EMPLOYEES table with the DEPARTMENT_ID values in the DEPARTMENTS table. The relationship between the EMPLOYEES and DEPARTMENTS tables is an equijoin—that is, values in the DEPARTMENT_ID column on both tables must be equal. Frequently, this type of join involves primary and foreign key complements. Note: Equijoins are also called simple joins or inner joins…
Write a Query to Delete The Repeated Rows from emp table? How to Delete the rows of employees who are working in the company for more ? How to impose a validation saying that salary cannot be greater 10,000 (note give a name to this constraint)
Based on the departments table below, create a SQL table called employees that stores employee number, employee name, department, and salary information. The primary key for the employees table should be the employee number.
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Write a SQL query to find the 10th highest employee salary from an Employee table. Explain your answer. Explain your answer. (Note: You may assume that there are at least 10 records in the Employee table.)

29/04/2015 · Result: The Employee table is related to the Person table by BusinessEntityID. Since both columns are primary keys, there is a one-to-one relationship between the tables. Since both columns are primary keys, there is a one-to-one relationship between the tables.
Part – I SQL Interview Questions 1. Display the dept information from department table. select * from dept; 2. Display the details of all employees. select * from emp; 3. Display the name and job for all employees. select ename, job from emp;
HR Schema. 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.
A mono-dimension cross-tabulation query, a.k.a. pivot table Back to our “simple” pivot table SELECT department AS department ,count(CASE WHEN gender = ‘f’ THEN person_id

The EMP and DEPT tables for MySQL Justinsomnia

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2/11/2014 · Tables to be used: 1. scott.emp. 2. scott.dept For all deptno s in dept table if there is atleast 1 employee present in the emp table the output should be 1 else the output should be 0.
right outer join between department table and employee table. SQL> SQL> CREATE TABLE departments 2 (department_id number(10) not null, 3 department_name varchar2(50) not null, 4 CONSTRAINT departments_pk PRIMARY KEY (department_id) 5 ); Table created.
Write a query using a WHERE clause that displays all the employees listed in the HumanResources.Employee table who have the job title Research and Development Engineer. Display the business entity ID number, the login ID, and the title for each one.
Get the details of employees whose salary is less than that of all those employees who work on project P2. Get details of the department with the largest budget; use >=ALL. Write an equivalent query …
More SQL: Complex Queries FROM P as PROJECT, D as DEPARTMENT, E as EMPLOYEE The first table named in the FROM clause will be the left side, and the second table named will be …
20/04/2013 · Execute the below code snippets to create and seed the EMP and DEPT tables in your own schema. The BONUS and SALGRADE tables are included as well, but are commented out. The DDL (data definition language) part creates the tables, …


3 CSC343 Introduction to Databases — University of Toronto SQL — 5 Simple SQL Query Æ”Find the salaries of employees named Brown”: select Salary as Remuneration
. write simple SQL queries (queries against a single table). Introduction to the Relational Model and SQL 62 Overview 1. The Relational Model, Example Database 2. Simple SQL Queries 3. Historical Remarks. The Relational Model (1) 63 • The relational model structures data in tabular form, i.e., a relational database is a set of named tables. A relational database schema defines: O1 Names of
Modify p6q3.sql to display the employee number, name, and salary for all employees who earn more than the average salary and who work in a department with any employee with a T in their name.
The source code for the load_sample.sql is: a row to the JOB_HISTORY table and row trigger REM to call the procedure when data is updated in the job_id or REM department_id columns in the EMPLOYEES table:
161) Display employee name and department name for each employee. SQL>select empno,dname from emp,dept where emp.deptno=dept.deptno 162)Display employee number,name and location of the department in which he
There are 2 tables, Employee and Department. There are few records in employee table, for which, the department is not assigned. The output of the query should contain all th employees names and their corresponding departments, if the department is assigned otherwise employee names and null value in the place department name.
AS SELECT query to materialize a sample of an underlying table and then rewrite the original query to refer to the newly created table sample. If you wish, you can write additional queries to materialize samples for other tables.


Interview question for Senior Software Engineer in Houston, TX.Question related Department to employees ( SQL table design) and queries. Employee Table Columns are id , name , mgr_id ( name is firstname space lastName) Department table looks like name ,head ( where head is mgr_id ) Questions are 1) Write an SQL query to list the full name of
We will leverage familiar employee-manager hierarchical data structure from the EMP table for the examples. Here is the example of hierarchical SQL query with CONNECT BY and LEVEL at …
Write a query in SQL to display the first and last name, salary, and department ID for all those employees who work in that department where the employee works who hold the ID 201. Go to the editor Sample table : employees
D. 7 Answer: B.Oracle treats the values within double quotes as string expressions. 6. Write a query to display employee details Name,Department,SalaryandJob from EMP table.
Display employee ID , employee last name and department id for employees who did more than one job in the past.(use job_history table) –clue(join job history and employees table)

Relational schema for SQL queries EMPLOYEE (FNAME MINIT

What is the SQL query to find the details of the recently joined employee in an employee table? What is the SQL query to get the values that are not present in a table? How do I set default value to the new columns that are not available in source table, during insert data from source table to target table in
The Employees sample database was developed by Patrick Crews and Giuseppe Maxia and provides a combination of a large base of data (approximately 160MB) spread over six separate tables and consisting of 4 million records in total.
Write a query in SQL to display the employee Id, first name, job id, and department number for those employees whose department number equals 30, 40 or 90. Go to the editor Sample table : employees
The source code for the load_sample.sql is: The manager_id column of the employee table references this column.’; COMMENT ON COLUMN departments.location_id IS ‘Location id where a department is located. Foreign key to location_id column of locations table.’; REM ***** COMMENT ON TABLE job_history IS ‘Table that stores job history of the employees. If an employee changes …
The SQL SELECT Statement Questions – Guide for the preparation of Oracle Database 11g Administrator Certified Associate, OPN Certified Specialist exams. This guide helps you prepare for the certificate exam online step by step and absolutely FREE. This certification is to put you on the short list for winning Oracle SQL-Based projects. An

SQL Join Tutorial SQL Join Example Advanced SQL Queries

Jane Reid, BSc/IT DB, QMUL, 28/1/02. Page 2. SQL queries Query 0 Retrieve the birthdate and address of the employee(s) whose name is ‘John B Smith’
SELECT Pnumber FROM P as PROJECT, D as DEPARTMENT, E as EMPLOYEE WHERE P.Dnum=D.Dnumber AND E.Ssn= 12345 • The FROM clause indicates which tables are to be joined.
This shows a list of 6 departments and 16 employees. The manager_id column in the employee table refers to the employee_id column in the same table.
14/06/2014 · Based on the above two tables write a SQL Query to get the name of the Department that has got the maximum number of Employees. To answer this …
— Copy/Paste this script in Query Analyzer and select the database — from the drop down list where you want to create these tables. — Select EXECUTE from the QUERY menu or …

sql scenario on emp and dept Oracle Community


Part I SQL Interview Questions – Krishna training

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SQL – There are 2 tables, Employee and Department. There are few records in employee table, for which, the department is not assigned. The output of the query should contain all th employees names and their corresponding departments, if the department is a. 7 Answers are available for this question.
SQL: We can find the youngest employee in each departments by using sub query concept. We assign output of inner query to input of outer query. First,we obtain the youngest employees from each departments by inner query and it provides as input to outer query.
Create a query to display the employee number, first name, last name, phone number and department number (Employees table). Create a query to display the first name, last name, hire date, salary, and salary after a raise of 20%.
Display the department number and department name for all departments whose location number is equal to the location number of department number 90 (Departments table). Display the last name and hire date for all employees who was hired after employee number 101 ( Employees table).
This query will give 2 records for Chicago because there are 2 records in employee table with a valid manager ID for Chicago’s department. Without JOIN select dept.dept_no, dept.dept_name, dept.dept_location, employee.mgr_emp_id from dept, employee where dept.dept_no = employee.dept_no and employee.mgr_emp_id is not null;
Write a query that displays the employee numbers and last names of all employees who work in a department with any employee whose last name contains a u.sql to lab6_7. Write a query to display the last name and hire date of any employee in the same department as Zlotkey. Run the statement in lab6_7. and job ID of all employees whose department location ID is 1700.
Summary: in this tutorial, you will learn how to use SQL UPDATE statement to modify existing data in a table. SQL UPDATE syntax. The UPDATE statement changes existing data in one or more rows in a table.

right outer join between department table and employee


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Example 2: Join the EMP_ACT and EMPLOYEE tables, select all the columns from the EMP_ACT table and add the employee’s surname (LASTNAME) from the EMPLOYEE table to each row of the result. Example 3: Join the EMPLOYEE and DEPARTMENT tables, select the employee number (EMPNO), employee surname
• if the attribute names for department number are the same in both employee and department tables, then qualifier will be necessary in specifying a query to avoid ambiguity.
SQL Queries ¨SQL queries use ¨SQL provides grouping and aggregate operations, just like relational algebra ¨Aggregate functions: SUM sums the values in the collection AVG computes average of values in the collection COUNT counts number of elements in the collection MIN returns minimum value in the collection MAX returns maximum value in the collection ¨SUMand AVGrequire numeric inputs

Answers to 60 SQL lab queries SELECT compsciprep.com

SQL CREATE TABLE Statement. The CREATE TABLE Statement is used to create tables to store data. Integrity Constraints like primary key, unique key, foreign key can be defined for the columns while creating the table.
The EMP table is a simple 14-row table with only numeric, string, and date fields. The DEPT table is a simple four-row table with only numeric and string fields. These tables appear in many old database texts, and the many-to-one relationship between departments and employees is well understood.
1. Select the last name of all employees. /* With OR */ SELECT * FROM Employees WHERE Department = 37 OR Department = 77; /* With IN */ SELECT * FROM Employees WHERE Department IN (37,77); 7. Select all the data of employees whose last name begins with an “S”. 10. Select all the data of employees
The queries given in the examples above will join the Employee and Department tables using the DepartmentID column of both tables. Where the DepartmentID of these tables match (i.e. the join-predicate is satisfied), the query will combine the LastName , DepartmentID and DepartmentName columns from the two tables into a result row.
SQL-QUERIES. 1. Display all the information of the EMP table? A) select * from emp; 2. Display unique Jobs from EMP table? A) select distinct job from emp; B) select unique job from emp; 3. List the emps in the asc order of their Salaries? A) select * from emp order by sal asc; 4. List the details of the emps in asc order of the Dptnos and desc of Jobs? A)select * from emp order by deptno asc


SQL QUERRIES Date:27/08/07. Q:1 Write a query to display name, job, hiredate and employee number for each employee with employee number appearing first.
Write a query to extract the YEAR from the HIRE_DATE column of the EMPLOYEES table for those employees who work in department 80. … n l y e O s 5. Alter the session to set NLS_DATE_FORMAT to DD-MON-YYYY. U A I O l & n a te r I n c l e r a O Oracle Database 10g: SQL Fundamentals II 5-37 Practice 5 (continued) 6. Examine and run script lab_05_06.sql to create the SAMPLE_DATES table …
In this blogpost we would be providing Sample Practice SQL Queries with Solutions For Employee Table. If you are an Database Administrator or a Database Analyst oor someone who wants to know how to manipulate data from employee tables in your organization, you can use make use of this SQL …

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Part 8 SQL Query to find department with highest YouTube

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Step-by-Step Guide to Creating SQL Hierarchical Queries

Part 8 SQL Query to find department with highest YouTube
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This shows a list of 6 departments and 16 employees. The manager_id column in the employee table refers to the employee_id column in the same table.
SQL CREATE TABLE Statement. The CREATE TABLE Statement is used to create tables to store data. Integrity Constraints like primary key, unique key, foreign key can be defined for the columns while creating the table.
Based on the departments table below, create a SQL table called employees that stores employee number, employee name, department, and salary information. The primary key for the employees table should be the employee number.
Modify p6q3.sql to display the employee number, name, and salary for all employees who earn more than the average salary and who work in a department with any employee with a T in their name.
Part – I SQL Interview Questions 1. Display the dept information from department table. select * from dept; 2. Display the details of all employees. select * from emp; 3. Display the name and job for all employees. select ename, job from emp;
Display employee ID , employee last name and department id for employees who did more than one job in the past.(use job_history table) –clue(join job history and employees table)
DEPARTMENT_ID column in the EMPLOYEES table with the DEPARTMENT_ID values in the DEPARTMENTS table. The relationship between the EMPLOYEES and DEPARTMENTS tables is an equijoin—that is, values in the DEPARTMENT_ID column on both tables must be equal. Frequently, this type of join involves primary and foreign key complements. Note: Equijoins are also called simple joins or inner joins…
SQL-QUERIES. 1. Display all the information of the EMP table? A) select * from emp; 2. Display unique Jobs from EMP table? A) select distinct job from emp; B) select unique job from emp; 3. List the emps in the asc order of their Salaries? A) select * from emp order by sal asc; 4. List the details of the emps in asc order of the Dptnos and desc of Jobs? A)select * from emp order by deptno asc
A mono-dimension cross-tabulation query, a.k.a. pivot table Back to our “simple” pivot table SELECT department AS department ,count(CASE WHEN gender = ‘f’ THEN person_id

Introduction to the Relational Model and SQL
How to get name of youngest employee from each department

The source code for the load_sample.sql is: a row to the JOB_HISTORY table and row trigger REM to call the procedure when data is updated in the job_id or REM department_id columns in the EMPLOYEES table:
Get the details of employees whose salary is less than that of all those employees who work on project P2. Get details of the department with the largest budget; use >=ALL. Write an equivalent query …
The EMP table is a simple 14-row table with only numeric, string, and date fields. The DEPT table is a simple four-row table with only numeric and string fields. These tables appear in many old database texts, and the many-to-one relationship between departments and employees is well understood.
HR Schema. 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.
Modify p6q3.sql to display the employee number, name, and salary for all employees who earn more than the average salary and who work in a department with any employee with a T in their name.
• if the attribute names for department number are the same in both employee and department tables, then qualifier will be necessary in specifying a query to avoid ambiguity.
D. 7 Answer: B.Oracle treats the values within double quotes as string expressions. 6. Write a query to display employee details Name,Department,SalaryandJob from EMP table.

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HR Schema Oracle

Display employee ID , employee last name and department id for employees who did more than one job in the past.(use job_history table) –clue(join job history and employees table)
DEPARTMENT_ID column in the EMPLOYEES table with the DEPARTMENT_ID values in the DEPARTMENTS table. The relationship between the EMPLOYEES and DEPARTMENTS tables is an equijoin—that is, values in the DEPARTMENT_ID column on both tables must be equal. Frequently, this type of join involves primary and foreign key complements. Note: Equijoins are also called simple joins or inner joins…
Write a query that displays the employee numbers and last names of all employees who work in a department with any employee whose last name contains a u.sql to lab6_7. Write a query to display the last name and hire date of any employee in the same department as Zlotkey. Run the statement in lab6_7. and job ID of all employees whose department location ID is 1700.
The queries given in the examples above will join the Employee and Department tables using the DepartmentID column of both tables. Where the DepartmentID of these tables match (i.e. the join-predicate is satisfied), the query will combine the LastName , DepartmentID and DepartmentName columns from the two tables into a result row.

Relational schema for SQL queries EMPLOYEE (FNAME MINIT
SQL-QUERIES Online Training Oracle Applications

3 CSC343 Introduction to Databases — University of Toronto SQL — 5 Simple SQL Query Æ”Find the salaries of employees named Brown”: select Salary as Remuneration
SQL-QUERIES. 1. Display all the information of the EMP table? A) select * from emp; 2. Display unique Jobs from EMP table? A) select distinct job from emp; B) select unique job from emp; 3. List the emps in the asc order of their Salaries? A) select * from emp order by sal asc; 4. List the details of the emps in asc order of the Dptnos and desc of Jobs? A)select * from emp order by deptno asc
Write a query in SQL to display the employee Id, first name, job id, and department number for those employees whose department number equals 30, 40 or 90. Go to the editor Sample table : employees
2/11/2014 · Tables to be used: 1. scott.emp. 2. scott.dept For all deptno s in dept table if there is atleast 1 employee present in the emp table the output should be 1 else the output should be 0.
SQL QUERRIES Date:27/08/07. Q:1 Write a query to display name, job, hiredate and employee number for each employee with employee number appearing first.
The SQL SELECT Statement Questions – Guide for the preparation of Oracle Database 11g Administrator Certified Associate, OPN Certified Specialist exams. This guide helps you prepare for the certificate exam online step by step and absolutely FREE. This certification is to put you on the short list for winning Oracle SQL-Based projects. An
The EMP table is a simple 14-row table with only numeric, string, and date fields. The DEPT table is a simple four-row table with only numeric and string fields. These tables appear in many old database texts, and the many-to-one relationship between departments and employees is well understood.