| |
| DROP TABLE IF EXISTS UserVisits_web_text_none; |
| |
| CREATE TABLE UserVisits_web_text_none ( |
| sourceIP string, |
| destURL string, |
| visitDate string, |
| adRevenue float, |
| userAgent string, |
| cCode string, |
| lCode string, |
| sKeyword string, |
| avgTimeOnSite int) |
| row format delimited fields terminated by '|' stored as textfile; |
| |
| LOAD DATA LOCAL INPATH "../../data/files/UserVisits.dat" INTO TABLE UserVisits_web_text_none; |
| |
| explain |
| analyze table UserVisits_web_text_none compute statistics for columns sourceIP, avgTimeOnSite, adRevenue; |
| |
| explain extended |
| analyze table UserVisits_web_text_none compute statistics for columns sourceIP, avgTimeOnSite, adRevenue; |
| |
| analyze table UserVisits_web_text_none compute statistics for columns sourceIP, avgTimeOnSite, adRevenue; |
| |
| explain |
| analyze table default.UserVisits_web_text_none compute statistics for columns; |
| |
| analyze table default.UserVisits_web_text_none compute statistics for columns; |
| |
| describe formatted UserVisits_web_text_none destURL; |
| describe formatted UserVisits_web_text_none adRevenue; |
| describe formatted UserVisits_web_text_none avgTimeOnSite; |
| |
| CREATE TABLE empty_tab( |
| a int, |
| b double, |
| c string, |
| d boolean, |
| e binary) |
| row format delimited fields terminated by '|' stored as textfile; |
| |
| explain |
| analyze table empty_tab compute statistics for columns a,b,c,d,e; |
| |
| analyze table empty_tab compute statistics for columns a,b,c,d,e; |
| |
| create database if not exists dummydb; |
| |
| use dummydb; |
| |
| analyze table default.UserVisits_web_text_none compute statistics for columns destURL; |
| |
| describe formatted default.UserVisits_web_text_none destURL; |
| |
| CREATE TABLE UserVisits_in_dummy_db ( |
| sourceIP string, |
| destURL string, |
| visitDate string, |
| adRevenue float, |
| userAgent string, |
| cCode string, |
| lCode string, |
| sKeyword string, |
| avgTimeOnSite int) |
| row format delimited fields terminated by '|' stored as textfile; |
| |
| LOAD DATA LOCAL INPATH "../../data/files/UserVisits.dat" INTO TABLE UserVisits_in_dummy_db; |
| |
| use default; |
| |
| explain |
| analyze table dummydb.UserVisits_in_dummy_db compute statistics for columns sourceIP, avgTimeOnSite, adRevenue; |
| |
| explain extended |
| analyze table dummydb.UserVisits_in_dummy_db compute statistics for columns sourceIP, avgTimeOnSite, adRevenue; |
| |
| analyze table dummydb.UserVisits_in_dummy_db compute statistics for columns sourceIP, avgTimeOnSite, adRevenue; |
| |
| explain |
| analyze table dummydb.UserVisits_in_dummy_db compute statistics for columns; |
| |
| analyze table dummydb.UserVisits_in_dummy_db compute statistics for columns; |
| |
| describe formatted dummydb.UserVisits_in_dummy_db destURL; |
| describe formatted dummydb.UserVisits_in_dummy_db adRevenue; |
| describe formatted dummydb.UserVisits_in_dummy_db avgTimeOnSite; |
| |
| drop table dummydb.UserVisits_in_dummy_db; |
| |
| drop database dummydb; |
| |
| |
| |
| |
| |