Computers and Technology
Computers and Technology, 31.08.2019 09:30, deadscoper

What is the name of the special internal database where the query optimizer finds information?

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Computers and Technology, 23.07.2019 09:00, kbows12
Adatabase interrogation is a major benefit of the database management approach, where end users can query (“ask”) the database for information. the structured query language (sql) is an international standard query language found in many dbms packages. the basic form of a sql query is: select . . from . . where . . for example, if we have the following students table: student_id student_name course_id student_gpa college_code 140064001 ahmad nasser it101 3.5 chs 140064002 sarah abdullah it343 2.75 cci 140064003 sultan mohamed it242 3.15 cci 140064004 basmah khaled it446 3.90 cci 140064005 bader ali it101 2.90 chi 140064006 fahad mutlaq it448 1.95 cci 140064007 salman abdulaziz it242 2.90 cci the following sql query is used to retrieve student_name and course_id for all students who have gpa = 2.90 select [student_name], [course_id] from [students] where [student_gpa] = 2.90
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Computers and Technology, 14.09.2019 13:10, AceTest
Which step is missing in the procedure for running database commands from a python script? import the connector library, open a connection to the database using your database connection credentials, construct and send a query, commit the query if it’s an insert, update, or delete operation, close the cursor, close the connection. a obtain a cursor b validate the connection c validate the query d buffer the connection
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Mathematics, 26.10.2019 03:43, imhorribleatmath90
When setting optimizer hints, instructs the optimizer to minimize the overall execution time, that is, to minimize the time it takes to return the total number of rows in the query result set. this hint is generally used for batch mode processes. a) all_rows b) first_rows c) index(p_qoh_ndx) d) optimization_rows
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Social Studies, 31.10.2019 01:31, rayden62
When setting optimizer hints, instructs the optimizer to minimize the overall execution time, that is, to minimize the time it takes to return the total number of rows in the query result set. this hint is generally used for batch mode processes.
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