In general, there are a few guidelines that you should observe when coding in MYSQL (select all that apply): Question options: Avoid using the leave verb because it can make your code hard to read. Try to keep any trigger, procedure, or function to a "screen" full of code. Create sub procedures as necessary. One-letter variable names are encouraged in MySQL programming. It's a sign of how macho a programmer you are. Avoid using the iterate verb because it can make your code hard to read.
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- Hello I am receiving this error whenever I try to import it into MySQL using this code SELECT store_id AS Store, COUNT(*) AS Num_CustomersFROM sakila.customerGROUP BY store_idORDER BY store_id DESC, COUNT(*) DESC;SELECT film.title AS Title, rental.rental_date AS Rental_Date, rental.return_date AS Return_DateFROM sakila.customerJOIN sakila.rental ON customer.customer_id = rental.customer_idJOIN sakila.inventory ON rental.inventory_id = inventory.inventory_idJOIN sakila.film ON inventory.film_id = film.film_idWHERE customer.first_name = 'JO' AND customer.last_name = 'FOWLER'ORDER BY rental.rental_date ASC;REPLACE VIEW top_rental_films ASCREATE OR SELECT film.title AS FilmTitle, COUNT(rental.rental_id) AS Num_Rentals, AVG(payment.amount) AS Avg_AmtFROM sakila.filmJOIN sakila.inventory ON film.film_id = inventory.film_idJOIN sakila.rental ON inventory.inventory_id = rental.inventory_idJOIN sakila.payment ON rental.rental_id = payment.rental_idGROUP BY film.film_idORDER BY…In C programming, how can I generate a unique key from 2 strings? Let's say I have "username1" and "username2" How can I combine these two usernames together to generate a unique value? The value should be the same no matter how they are combined if username2 is entered first or vice versa the two names should always combine to become the same unique value. The string length will not work as other usernames can have the same length. Is there a simple way to do this or a technique for this?I am having an issue creating this function with a trigger using postgreSQL (plpgsql). Could someone please help me solve this? Thank you! CREATE OR REPLACE FUNCTION Moreno_03_bankTriggerFunction()RETURNS TRIGGERLANGUAGE PLPGSQLAS$$BEGINCREATE TRIGGER Moreno_03_bankTriggerAFTER DELETE ON accountFOR EACH ROWWHERE depositor.account_number = account.account_numberEXECUTE PROCEDURE Moreno_15_bankTriggerFunction();END;$$ Database Schema: branch ( branch_name, branch_city, assets ) customer ( ID, customer_name, customer_street, customer_city ) loan ( loan_number, branch_name, amount ) borrower ( ID, loan_number ) account ( account_number, branch_name, balance ) depositor ( ID, account_number )
- Which of the following is NOT an option when implementing referential integrity cascade options? Group of answer choices cascade set to null restrict forceI need to know how to loop through a SQL query using PDO in PHP while only returning results under a specific condition. Below is an example of a code of my problem which checks to see if the generated number already exists in the database and only then commits the task. (The generated number in the example below already exists in the database but it is not returning anything.) <?php $mark = 100; $random = $mark.rand(100000, 999999); $result = $pdo->query('SELECT user_ID FROM user'); $row = $result->fetchAll(PDO::FETCH_ASSOC); foreach($row as $rows) { if($rows == 100000324) { echo $rows["user_ID"] . '<br>'; } } ?>Hello, I am having an error and cannot figure out how to solve this question. Could someone please assist? Please be advised, I am using PostgreSQL as that is what was used in class. Thus, I must use PLPGSQL Code CREATE OR REPLACE FUNCTION Moreno_03_bankTriggerFunction()RETURNS TRIGGERLANGUAGE PLPGSQLAS$$CREATE TRIGGER Wise_12_bankTriggerAFTER DELETE ON accountFOR EACH ROW EXECUTE PROCEDURE Moreno_15_bankTriggerFunction();
- write the code for the following triggers in MySQL following the style shown in the text. A: When adding a customer, add the customer balance multiplied by the sales rep's commission rate to the commission for the corresponding sales rep. B: When updating a customer, add the difference between the new balance and the old balance multiplied by the sales rep's commission rate to the commission for the corresponding sales rep. C: When deleting a customer, subtract the balance multiplied by the sales rep's commission rate from the commission for the corresponding sales rep. CREATE TABLE REP(REP_NUM CHAR(2) PRIMARY KEY,LAST_NAME CHAR(15),FIRST_NAME CHAR(15),STREET CHAR(15),CITY CHAR(15),STATE CHAR(2),POSTAL_CODE CHAR(5),COMMISSION DECIMAL(7,2),RATE DECIMAL(3,2) );CREATE TABLE CUSTOMER(CUSTOMER_NUM CHAR(3) PRIMARY KEY,CUSTOMER_NAME CHAR(35) NOT NULL,STREET CHAR(20),CITY CHAR(15),STATE CHAR(2),POSTAL_CODE CHAR(5),BALANCE DECIMAL(8,2),CREDIT_LIMIT DECIMAL(8,2),REP_NUM CHAR(2) );INSERT INTO…3. Create a stored procedure named spDateRange that accepts two parameters, @DateMin and @DateMax, with data type varchar and default value null. If called with no parameters or with null values, raise an error that describes the problem. If called with non-null values, validate the parameters. Test that the literal strings are valid dates and test that @DateMin is earlier than @DateMax. If the parameters are valid, return a result set that includes the InvoiceNumber, InvoiceDate, InvoiceTotal, and Balance for each invoice for which the InvoiceDate is within the date range, sorted with earliest invoice first.1. You can manage risk in your orders by adding the TakeProfit/StopLoss attributes using fxcmpy. Group of answer choices True False 2. The following code retrieves and prints the candles data using the fxcmpy package. from fxcmpy import fxcmpy_candles_data_reader as cdr print(cdr.get_available_symbols()) Group of answer choices True False 3. Optimizers are a set of procedures defined in SciPy that either find the minimum value of a function or the root of an equation. Group of answer choices True False
- Below is the code for a procedure that will accept a Customer ID as an input parameter and display the Customer ID, Customer Surname and Customer Address. Review the code, then answer the questions that follow. create or replace procedure sp_customer_details (c_id IN CUSTOMER.cust_id%TYPE,customer_details out VARCHAR2)ISBEGINSELECT 'CUSTOMER ID:' || c.cust_id || ', Surname:'|| c.cust_sname || ',ADDRESS:' ||c.cust_addressinto customer_detailsfrom CUSTOMER cwhere c.cust_id = c_id;END; Q.1 Briefly discuss the advantages of using the %TYPE attribute in the code. Q.2 Create the code to execute the procedure with exception handling if no customer data is found. Use customer ID C115 in your code.Hello, I am having an error and cannot figure out how to solve this question. Could someone please assist? Please be advised, I am using PostgreSQL as that is what was used in class. Thus, I must use PLPGSQL Application: PostgreSQL 12 or 13PLPGSQL CREATE OR REPLACE FUNCTION Moreno_03_bankTriggerFunction()RETURNS TRIGGERLANGUAGE PLPGSQLAS$BODY$CREATE TRIGGER Moreno_03_bankTriggerAFTER DELETE ON accountFOR EACH ROW EXECUTE PROCEDURE Moreno_15_bankTriggerFunction(); TABLES (if needed) CREATE TABLE branch (branch_name varchar(35),branch_city varchar(15),assets numeric(15,2) CHECK (assets > 0.00),CONSTRAINT branch_pkey PRIMARY KEY (branch_name));CREATE TABLE customer (ID varchar(15),customer_name varchar(25) NOT NULL,customer_street varchar(35),customer_city varchar(15),CONSTRAINT customer_pkey PRIMARY KEY (ID));CREATE TABLE loan (loan_number varchar(15),branch_name varchar(35),amount numeric(15,2),CONSTRAINT loan_pkey PRIMARY KEY (loan_number),CONSTRAINT loan_fkey FOREIGN KEY…ID At_fault_claims 1001 0 1001 1 1002 0 1002 1 1002 1 1003 0 1004 1 1005 1 1005 0 Aggregate the the dataframe above at the ID to create the following claim count variables: : Number of At Fault claims Number of Not At Fault claims it should be written with python We should now have two additional columns 'at fault count' and 'not at fault count' in our aggregate dataframe