HANA Basic SQL 02

6、Where：Simple select with like and between and so on

First we check table and data

SQL

select * from "HANA04"."EMPDIM"

    where empid like '%A%'

is contain A，not middle letter is A

for example

7、Use function max、 count 、sum、 avg、 round

Check table

SQL

Limit：

Offset

8、Group by

Ok we firstly insert a new data

--insert data

insert into "HANA04"."EMPFACT1" values ('AA1','20160909','2000')

-- get sum amount group by empid

select empid,sum(sal) from "HANA04"."EMPFACT1" group by empid

Let's look at an error sentence

select

empid,

empdate,

sum(sal) from

"HANA04"."EMPFACT1" group by empid

Error message show we must add filed EMPDATE in group by

I think it is not what you want to see.

So when you want to use sum…group by, you should pay attention to the select field,

because you must group by all fields in your selected fields (except sum field)

Avg

Round

Also you can get avg value with group by

select empid ,avg(sal) from "HANA04"."EMPFACT1"

group by empid