I would like to convert code from T-SQL to SQLScript,
here is my sample select statement in T-SQL:
select cast ( 10 as binary )
Output is: 0x0000A
When I write this code in HANA, I get this result: 3130
How can I get this input 0x0000A in Hana?
So when I type select hextobin(0xA) from dummy I get 10 but how can I get 0xA from 10?
Related
I am always getting a null value from using XMLCAST function in Db2. But when using a normal function call it is returning value in xml format... as below query proper xml data is coming. function Getdatavalue is returning xml datatype. using Linux 8.2 and db2 11.5
db2 "select sample.Getdatavalue(1,4504)) from sysibm.sysdummy1"
in the above result we have some double quotes in output xml.
but once we have used xmlcast function as below, it is returning the hexa value of null. i am using MD5 hashing mechanism.
db2 "select HEX(HASH(xmlcast(sample.Getdatavalue(1,4504) as varchar(32672)),0)) as hash_val from sysibm.sysdummy1";
even once i tried without Hash it was returning null result for below query. it looks xmlcast is not working.
db2 "select xmlcast(sample.Getdatavalue(1,4504) as varchar(32672)) as hash_val from sysibm.sysdummy1";
is there any way to convert xml datatype to clob or varchar.
body of Getdatavalue as:
CREATE FUNCTION sample.Getdatavalue (v1 smallint, v2 integer)
RETURNS xml
LANGUAGE SQL
BEGIN ATOMIC
DECLARE v_Data xml;
set v_Data = (SELECT XMLELEMENT( NAME "rt_ky_cmpnnt",
XMLAGG(XMLELEMENT(NAME "rt", XMLAttributes(rt.rt_field_add_val AS
"rt_add_val",
rt.rt_name AS
"rt_name",
rt.rt_name AS
"rt_name",
rt.rt_val1 AS "rt_val1",
rt_lim AS "rt_lim",
rt.rt_val2 AS "rt__val2",
rt.rt_whole_val AS "rt_whole_val" ))order by
rf.rt_num asc)OPTION null ON NULL)
FROM sample.cmpnnt_val rt inner join sample.field_val rf
on rf.abc=rt.abc
and rf.pqr=rt.pqr
and rt.xyz=rf.xyz
where rt.abc = v1
AND rt.bcd = v2 );
RETURN v_Data;
END!
can anyone please explain how to handle xmlcast.
To retrieve a string from an XML value, use the function XMLSERIALIZE.
The XMLSERIALIZE function returns a serialized XML value of the specified data type generated from the XML-expression argument.
Hello I have created a view, but want to pivot it.
OUTPUT before pivoting:
expected output:
my full query:
SELECT *
FROM CROSSTAB(
'SELECT DISTINCT GROUP_DEST::TEXT,DEST::TEXT,TIER::TEXT,RATE::TEXT FROM VBB_TIER ORDER BY 1,2')
AS CT(ROW_NAME TEXT, TIER_1 TEXT, TIER_2 TEXT )
I getting this error and unable to resolve:
ERROR: invalid source data SQL statement
DETAIL: The provided SQL must return 3 columns: rowid, category, and values.
SQL state: 22023
Using filtered aggregation is typically a lot easier than the somewhat convoluted crosstab() function:
select group_dest,
dest,
max(rate) filter (where tier in ('0-100', ('0-150')) as tier_1,
max(rate) filter (where tier in ('101-200', '151-350') as tier_2
from vbb_tier
group by group_dest, dest;
I need to include EXTRACT() function within WHERE clause as follow:
SELECT * FROM my_table WHERE EXTRACT(YEAR FROM date) = '2014';
I get a message like this:
pg_catalog.date_part(unknown, text) doesn't exist**
SQL State 42883
Here is my_table content (gid INTEGER, date DATE):
gid | date
-------+-------------
1 | 2014-12-12
2 | 2014-12-08
3 | 2013-17-15
I have to do it this way because the query is sent from a form on a website that includes a 'Year' field where users enter the year on a 4-digits basis.
The problem is that your column is of data type text, while EXTRACT() only works for date / time types.
You should convert your column to the appropriate data type.
ALTER TABLE my_table ALTER COLUMN date TYPE date;
That's smaller (4 bytes instead of 11 for the text), faster and cleaner (disallows illegal dates and most typos).
If you have non-standard format add a USING clause with a conversion expression. Example:
Alter character field to date
Also, for your queries to be fast with a plain index on date you should rather use sargable predicates. Like:
SELECT * FROM my_table
WHERE date >= '2014-01-01'
AND date < '2015-01-01';
Or, to go with your 4-digit input for the year:
SELECT * FROM my_table
WHERE date >= to_date('2014', 'YYYY')
AND date < to_date('2015', 'YYYY');
You could also be more explicit:
to_date('2014' || '0101', 'YYYYMMNDD')
Both produce the same date '2014-01-01'.
Aside: date is a reserved word in standard SQL and a basic type name in Postgres. Don't use it as identifier.
This happens because the column has a text or varchar type, as opposed to date or timestamp. This is easily reproducible:
SELECT 1 WHERE extract(year from '2014-01-01'::text)='2014';
yields this error:
ERROR: function pg_catalog.date_part(unknown, text) does not exist
LINE 1: SELECT 1 WHERE extract(year from '2014-01-01'::text)='2014';
^ HINT: No function matches the given name and argument types. You might need to add explicit type casts.
extract or is underlying function date_part does not exist for text-like datatypes, but they're not needed anyway. Extracting the year from this date format is equivalent to getting the 4 first characters, so your query would be:
SELECT * FROM my_table WHERE left(date,4)='2014';
I'm using PostgreSQL 9.1 and let's say I have a type in PostgreSQL like:
CREATE TYPE sticker AS (
customer_id integer,
customer_machine_id integer,
);
and I have a plpgsql named get_sticker that returns the type sticker...
I can do this fine:
select get_sticker(a_value), * from foo_bar;
But, this returns the result in a tuple (which totally makes sense). But, how can I convert (basically unpack) to columns?
It seems like it would be something like the following, but it fails.
select get_sticker(a_value).*, * from foo_bar; -- <<<< FAIL
Error message:
ERROR: syntax error at or near "."
SQL state: 42601
You need an extra set of parentheses:
select (get_sticker(a_value)).*, * from foo_bar;
I'm trying to convert nvarchar to decimal (18,2) and I'm receiving the following message:
Msg 8115, Level 16, State 6, Line 2
Arithmetic overflow error converting nvarchar to data type numeric.
The CAST is: CAST(bm_onnet AS decimal(18,2)) as bm_onnet_corr,
it works only if the value has only maximum 3 decimals, doesn't work for value below:
21.8333333333333333333333333333333333333
How should I modify my SELECT?
Use the round function
example
declare #v nvarchar(100) = '21.8333333333333333333333333333333333333'
select convert(decimal(18,2),round(#v,2))
a select would look like this
SELECT CAST(round(bm_onnet,2) AS decimal(18,2)) as bm_onnet_corr
select
case when charindex('.',bm_onnet)) > = 2 then
convert(decimal(18,2),substring(bm_onnet,0,charindex('.',bm_onnet)+3))
else
convert(decimal(18,2),bm_onnet)
end
too early in the morning use this instead.