The database columns are the headers of the Excel data table. Find the names and cities of residence of all employees who work for First Bank Corporation. To delete the selected rows from a table, just fire the following query: … It is used for managing data in relational database management system which stores data in the form of tables and relationship between data is … Looks like you’ve clipped this slide to already. SQL commands are mainly categorized into four categories as discussed below : public static void main (String args[ ]) throws SQLException. 1974 - Structured Query Language appeared. Client-server LAN programming using SQL database file. 1978 - IBM released a product called System/R. 1970 - Dr. Edgar F. "Ted" Codd described a relational model for databases. Or, try NOT IN operator Ans. Write an SQL query to fetch duplicate records from an EmployeeDetails (leaving the primary key – EmpId). The drop table command deletes all information about the dropped relation from the database. If the answers are same for all databases, only one query is specified. However, most forget that SQL isn’t just about writing queries, which is just the first step down the road. (SELECT DISTINCT customer_id FROM depositor) EXCEPT (SELECT customer_id FROM borrower) ; The except operation automatically eliminates duplicates. It uses the, For all customers who have a loan from the bank, find their names, loan numbers, and loan amount, Find the list of all customers in alphabetic order who have a loan at the Parkstreet branch. Find all customers who have both an account and a loan at the bank. From COURSE table, we can find out C_ID for C_NAME ‘DSA’ or DBMS’ and we can use these C_IDs for finding S_IDs from STUDENT_COURSE TABLE.. In the future I will add more queries. In this article you will learn about 50 Important Queries in SQL Server. To find all customers who have both a loan and an account at the bank, we write. Ques.32. DROP VIEW view_name; A student''s database may have the following tables : SELECT DISTINCT t.branch_name FROM branch as t, branch AS s WHERE t.assets > s.assets AND s.branch_city = ’Kolkata’ ; SELECT branch_name FROM branch WHERE assets > SOME (SELECT assets FROM branch WHERE branch_city = ’Kolkata’) ; Now we modify our query slightly. Ashwinkumar Dinoriya The query editor is a tool in the Azure portal for running SQL queries against your database in Azure SQL Database or data warehouse in Azure Synapse Analytics. Follow me̷… Create all the tables mentioned in the database diagram. Each of customer can register multiple accounts each of which corresponds to a product type provided by the bank. Find the average balance for each customer who lives in Mumbai and has at least three accounts. The cardinality of the relationships indicated in the comment sections. The first word of each query is … REVOKE < permission > A transaction is a sequence of operations performed (using one or more SQL statements) on a database as a single logical unit of work. CREATE DATABASE testDB; Tip: Make sure you have admin privilege before creating any database. Give an expression in SQL for each of the following queries: Employee(person_name,street,city) Works(person_name,company_name,salary) Company(company_name,city) Manages(person_name,manager_name) a. Find the names of all branches in the loan relation. Next we define a query to create the database and call the function: All the SQL queries used in this tutorial are explained in my Introduction to SQL tutorial series, and the full code can be found in the associated Jupyter Notebook in this GitHub repository, so I will not be providing explanations of what the SQL code does in this tutorial. Following is a simple diagram showing the SQL Architecture: SQL 3 SQL Commands ... and for all modern database systems like MS SQL Server, IBM DB2, Oracle, MySQL, and Microsoft Access. He has authored 12 SQL Server database books, 35 Pluralsight courses and has written over 5200 articles on the database technology on his blog at a https://blog.sqlauthority.com. A database query can be either a select question or an action query. Banking Database Ashwinkumar Dinoriya INFO 6210 – Final Exam Presentation 2. Syntax. Find the average account balance at each branch. For example : Find the student details who get 40% marks or above. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems. BANK of SQL Questions Queries, all related to database. DELETE FROM account WHERE branch_name = ’Park Street’ ; DELETE FROM loan WHERE amount BETWEEN 50000 AND 100000 ; DELETE FROM account WHERE branch-name IN (SELECT branch_name FROM branch WHERE branch_city = ’Kolkata’) ; SELECT loan_number FROM loan WHERE branch_name = ’Park Street’ AND amount > 100000 ; SELECT loan_number FROM loan WHERE amount BETWEEN 100000 AND 500000 ; SELECT loan_number FROM loan WHERE amount >= 100000 AND amount <= 500000 ; SELECT customer_id, borrower.loan_number, amount FROM borrower, loan WHERE borrower.loan_number = loan.loan_number ; SELECT customer_id, borrower.loan_number, amount FROM borrower, loan WHERE borrower.loan_number = loan.loan_number AND branch_name = ’Park Street’ ; SELECT customer_id, borrower.loan_number AS loan_id, amount FROM borrower, loan WHERE borrower.loan_number = loan.loan_number ; SELECT customer_name, b.loan_number, l.amount FROM borrower AS b, loan AS l, customer AS c WHERE b.customer_id = c.customer_id AND b.loan_number = l.loan_number ; SELECT DISTINCT customer_name FROM borrower AS b, loan AS l, customer AS c WHERE b.customer_id = c.customer_id AND b.loan_number = l.loan_number AND branch_name = ’Parkstreet’ ORDER BY customer_name ; If we want to show the above query result in descending order, we can write. 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