databases Online Quiz - 243
Description: databases Online Quiz - 243 | |
Number of Questions: 22 | |
Created by: Aliensbrain Bot | |
Tags: databases |
Which SQL statement is used to insert new data in a database?
Which SQL statement is used to delete data from a database?
With SQL, how do you select all the columns from a table named 'Persons'?
With SQL, how do you select all the records from a table named 'Persons' where the value of the column 'FirstName' is 'Peter'?
Which SQL keyword is used to sort the result-set?
With SQL, how can you return all the records from a table named 'Persons' sorted descending by 'FirstName'?
What would be the output of the code below in SQL Server 2005 and earlier versions? declare @d date select @d = '09/09/2008' select @d
What is the output? declare @d decimal select @d = 3.564636 select @d
What is the output? DECLARE @val CHAR(20) SET @val = ' SQL is cool ' select LEN(@val)
what is the len of @c? declare @c varchar(8000) set @c = N'hello' + replicate('-',8000) print len(@c) print @c
What is the output? SELECT SUBSTRING('123456', 0, 3)
Which Oracle access method is the fastest way for Oracle to retrieve a single row?
Which command will delete all data from a table and will not write to the rollback segment?
What is the default behaviour of OUT parameter mode in PL/SQL
What is RAC
Which of the following SQL functions can operate on any datatype?
Which Oracle access method is the fastest way for Oracle to retrieve a single row?