Explain why SELECT clause comes after FROM clause in LINQ?

Q: The statement SELECT * FROM T1, T2 produces a(n). join. cross natural equi- full

A: Question The statement SELECT * FROM T1, T2 produces a(n) ____ join.

Q: In what situations is it necessary to add a GROUP BY clause in a query?

A: Group By clause is used when we have to group the data into groups.  It is used when we want to…

Q: xplain Local Descriptor Table?

A: Local descriptor table (LDT) : There are 3 different types of descriptor table  Global descriptor…

Q: Explain the difference between the WHERE and HAVING clause.

A: Where filters the record from the table. Having filter the record from the group. Where clause can…

Q: had dout in datastructures: Create the given table and implement the queries: OrderNo PurchaseAmt…

A: CREATE TABLE Purchases(  OrderNo int  primary key,   PurchaseAmt real,   OrderDate date,…

Q: Because the order of operands (tables) matters in an EXCEPT (MINUS) query but not in a UNION query,…

A: - We need to talk about the difference in using EXCEPT and UNION queries.

Q: In Foreign Key Concept which of the following operation on referencing table will cause violation to…

A: In Foreign key concept referencing table is the table which contains the foreign key attribute.  The…

Q: Using the corrected code from Step 28, include the Select into a temporary table named temptable.…

A: The query in the step 28 results in a table of values. Now,this table has to be stored in a…

Q: please correct same requirment ?

A: This is the correct program from my side

Q: MYSQL  Create Avgoffreight() stored procedure to retrieve the average of freight from Orders table.…

A: SQL code : CREATE TABLE WeekExpense( WeekNumber VARCHAR(20),WeekDayName VARCHAR(50), Expense…

Q: What exactly is a sub procedure?

A: Sub procedures is a type of procedures

Q: group

A: SQL stands for structured query language and has a number of clauses to run queries. Major and…

Q: How does Oracle 12c distinguish between clauses in a SELECT statement that belong to an outer query…

A: The answer of this question is as follows:

Q: How can you change "Hansen" into "Hilsen" in the "LastName" column in the "Persons" table? a)…

A: The syntax for UPDATE statement, when updating a table is: UPDATE table_name SET column1_name =…

Q: y constrain

A: Referential integrity constraint A foreign key constraint is another name for a referential…

Q: What does an EXCEPT (MINUS) query care about operand order, while a UNION query doesn't?

A: EXCEPT and UNION are one of the set operators which are used to compare and retrieve result from two…

Q: What does the group by clause accomplish?

A: group by clause is used in relational database with select statement. In select statement group by…

Q: How does a parameter query differ from a select query?

A: A parameterized query is a sort of SQL query that expects somewhere around one boundary for…

Q: What’s the basic difference between the ROLLUP and CUBE extensions of the GROUP BY clause?

A: The GROUP BY clause is used to group aggregate function outcomes according to a given column. The…

Q: Which group function can be used to perform a count that includes NULL values?

A: Group by functions are : SUM ( [ALL | DISTINCT ] expression ) AVG  ( ALL | DISTINCT ] expression )…

Q: I want to count the duplicates in a coloumn by using the having clause and without a group by. I can…

A: In nested queries, a query is written inside a query where the result of inner query is used in…

Q: Develop recurrence relations for the last 3 columns of table 1. Use the recurrence relation you…

A: What is an amortization schedule?A mortgage payment schedule is a table that lists each regular…

Q: The order of operands is significant in EXCEPT (MINUS) queries but is irrelevant in UNION queries?

A: Yes, thia statement is true that The order of operands is significant in EXCEPT (MINUS) queries but…

Q: Question 7

A: Answer of question 7 the code looks like follow: int main(int argc, char*argv[]) {    while(1) {…

Q: The Foreign key key is the field in the related table used to connect to the primary key in another…

A: here have to determine about key in table.

Q: 3. Create a procedure, ADD_EMPLOYEE, to insert a new employee into the EMPLOYEES table. The…

A: Note:  As per our guidelines we are supposed to answer only one question. Kindly repost the other…

Q: 4. Write two queries to list the ID of all the authors that do not have any books. a) Using a join:…

A: The requirement is to fetch the author_id from author table for the records where there is no…

Q: What is Order By clause ?

A: Order By clause An Order By clause specifies that a Structured Query Language (SQL) SELECT…

Q: The following digraph represents a relation R. a C b d List the ordered pairs in the relation. R = {

A: The given graph:

Q: Add Round Key should be described in detail.

A: Round key is used in DES and AES which are encryption technique. DES stands for data encryption…

Q: Explain the use of WHERE clause and illustrate the basic syntax of the SELECT statement with the…

A: Use of WHERE clause The SQL WHERE clause is used for checking a condition while fetching the data…

Q: QUESTION 2 In ASN.1 SEQUENCE data type used to list items where order is optional ( not mandatory)…

A: ASN.1 SEQUENCE typically uses the models in order to the collection of variables of a different…

Q: What exactly is Independent Sub Procedure?

A: Introduction: the question is about Independent Sub Procedure and here is the solution in the next…

Q: What is the difference between an EXCEPT (MINUS) query and a UNION query?

A: Introduction: The MINUS operator is used to get a result that appears in the first table but not in…

Q: What’s the maximum depth allowed when nesting group functions?

A: Overview :

Q: What is the finalise() procedure used for?

A: The steps that would be taken to complete a project plan Transfer the deliverables in a formal…

Q: Briefly explain descriptor table

A: Descriptor table: The descriptor table contains three tables. They are: Global descriptor table…

Q: . Rename the EMPLOYEES table as JL_EMPS

A: Renaming the table The Structured Query Language (SQL) alter statement is used when there is a…

SQL

SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.  

Queries

A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.