How is an index stored? OBy the row(s) values, in descending order O By the column(s) values, in ascending order O By the row(s) values, in ascending order By the column(s) values, in descending order

Database

SQL Database Designs   What do you think is the most important concept in SQL Database Designs

Database Oracle sql Note :I hope the solution is from HR in the Oracle sql software

Write Create Table SQL statements Work Session table  The table must have a primary key. The table must have appropriate foreign key constraints. Foreign keys must have the same name, datatype and size of the primary key that they refer to The following columns datatypes and sizes and named constraints must be used Column DataType Constraint WorkYear number(4) Range 2019 - 2020 WorkWeek number(2) Range 1-52 WorkHours number(4,2) Range 0.5 – 99.99 BID NUMBER(4) ,AUTHID NUMBER(4)

in sql  The ALTER SEQUENCE statement can be used to:                                             Select one: a. Change the maximum value to a lower number than was last used b. Change the name of the sequence c. Change the START WITH value of a sequence d.  Change the amount a sequence increments each time a number is generated

4. In the OrderItems table, display a count of the number of products, grouped by prod_id, but only for those groups having 3 or more of a given prod_id. Display the count with the alias shown. Sort by prod_id in ascending order. BNBG01 BNBG02 BNBG03 BR03 4 rows returned in 0.00 seconds PROD_ID Download 3 3 3 4 NUM_PROD_ID

python - Write the syntax for obtaining the index where X == 0.

What is the maximum number of columns you can define as a primary key when using the column-level approach to creating a table? ( refer to the tables in the JustLee Books database).                                                              a. 0 b. 1 c. 30 d. 255

Employee table: (E_Id,E_name,dept_name,Salary) Write Update query Increase salary by 5000 if salary between 30000 to 35000 Increase salary by 7000 if salary between 35001 to 41000 Increase salary by 9000 if salary between 41001 to 46000