I have table
TableA
ID PRICE DATE
123 200 01-SEP-2015
456 500 01-AUG-2015
In my query i want to show date when (date + X months)< sysdate else show null.
I have issue using variable in that query.
Forexample in record 1
(01-SEP-2015 + 3 months) = 01-DEC-2015 is not less than sysdate so, I don't want to show that date.
but on the other hand for second record
(01-AUG-2015 + 3 months) = 01-NOV-2015 is less than sysdate so, I want to show that date.
declare
x number(5);
set x:=3;
select
a.ID,
a.PRICE,
case when( ADD_MONTHS(a.DATE, x) < sysdate() )
then a.DATE
else
NULL
end as NEW_DATE
from TableA a;
You need to put an ampersand (&) before the variable name to tell SQL*Plus to substitute in the value of the variable:
declare
x number(5);
set x:=3;
select a.ID,
a.PRICE,
case
when ADD_MONTHS(a.DATE, &x) < sysdate then a.DATE
else NULL
end as NEW_DATE
from TableA a;
Also, DATE is a data type in Oracle - don't use it as a column name. You can do that but it's going to cause problems down the line somewhere.
Best of luck.
Related
I have a program that has been working for years. Today, we upgraded from SAS 9.4M3 to 9.4M7.
proc setinit
Current version: 9.04.01M7P080520
Since then, I am not able to get the same results as before the upgrade.
Please note that I am querying on Oracle databases directly.
Trying to replicate the issue with a minimal, reproducible SAS table example, I found that the issue disappear when querying on a SAS table instead of on Oracle databases.
Let's say I have the following dataset:
data have;
infile datalines delimiter="|";
input name :$8. id $1. value :$8. t1 :$10.;
datalines;
Joe|A|TLO
Joe|B|IKSK
Joe|C|Yes
;
Using the temporary table:
proc sql;
create table want as
select name,
min(case when id = "A" then value else "" end) as A length 8
from have
group by name;
quit;
Results:
name A
Joe TLO
However, when running the very same query on the oracle database directly I get a missing value instead:
proc sql;
create table want as
select name,
min(case when id = "A" then value else "" end) as A length 8
from have_oracle
group by name;
quit;
name A
Joe
As per documentation, the min() function is behaving properly when used on the SAS table
The MIN function returns a missing value (.) only if all arguments are missing.
I believe this happens when Oracle don't understand the function that SAS is passing it - the min functions in SAS and Oracle are very different and the equivalent in SAS would be LEAST().
So my guess is that the upgrade messed up how is translates the SAS min function to Oracle, but it remains a guess. Does anyone ran into this type of behavior?
EDIT: #Richard's comment
options sastrace=',,,d' sastraceloc=saslog nostsuffix;
proc sql;
create table want as
select t1.name,
min(case when id = 'A' then value else "" end) as A length 8
from oracle_db.names t1 inner join oracle_db.ids t2 on (t1.tid = t2.tid)
group by t1.name;
ORACLE_26: Prepared: on connection 0
SELECT * FROM NAMES
ORACLE_27: Prepared: on connection 1
SELECT UI.INDEX_NAME, UIC.COLUMN_NAME FROM USER_INDEXES UI,USER_IND_COLUMNS UIC WHERE UI.TABLE_NAME='NAMES' AND
UIC.TABLE_NAME='NAMES' AND UI.INDEX_NAME=UIC.INDEX_NAME
ORACLE_28: Executed: on connection 1
SELECT statement ORACLE_27
ORACLE_29: Prepared: on connection 0
SELECT * FROM IDS
ORACLE_30: Prepared: on connection 1
SELECT UI.INDEX_NAME, UIC.COLUMN_NAME FROM USER_INDEXES UI,USER_IND_COLUMNS UIC WHERE UI.TABLE_NAME='IDS' AND
UIC.TABLE_NAME='IDS' AND UI.INDEX_NAME=UIC.INDEX_NAME
ORACLE_31: Executed: on connection 1
SELECT statement ORACLE_30
ORACLE_32: Prepared: on connection 0
select t1."NAME", MIN(case when t2."ID" = 'A' then t1."VALUE" else ' ' end) as A from
NAMES t1 inner join IDS t2 on t1."TID" = t2."TID" group by t1."NAME"
ORACLE_33: Executed: on connection 0
SELECT statement ORACLE_32
ACCESS ENGINE: SQL statement was passed to the DBMS for fetching data.
NOTE: Table WORK.SELECTED_ATTR created, with 1 row and 2 columns.
! quit;
NOTE: PROCEDURE SQL used (Total process time):
real time 0.34 seconds
cpu time 0.09 seconds
Use the SASTRACE= system option to log SQL statements sent to the DBMS.
options SASTRACE=',,,d';
will provide the most detailed logging.
From the prepared statement you can see why you are getting a blank from the Oracle query.
select
t1."NAME"
, MIN ( case
when t2."ID" = 'A' then t1."VALUE"
else ' '
end
) as A
from
NAMES t1 inner join IDS t2 on t1."TID" = t2."TID"
group by
t1."NAME"
The SQL MIN () aggregate function will exclude null values from consideration.
In SAS SQL, a blank value is also interpreted as null.
In SAS your SQL query returns the min non-null value TLO
In Oracle transformed query, the SAS blank '' is transformed to ' ' a single blank character, which is not-null, and thus ' ' < 'TLO' and you get the blank result.
The actual MIN you want to force in Oracle is min(case when id = "A" then value else null end) which #Tom has shown is possible by omitting the else clause.
The only way to see the actual difference is to run the query with trace in the prior SAS version, or if lucky, see the explanation in the (ignored by many) "What's New" documents.
Why are you using ' ' or '' as the ELSE value? Perhaps Oracle is treating a string with blanks in it differently than a null string.
Why not use null in the ELSE clause?
or just leave off the ELSE clause and let it default to null?
libname mylib oracle .... ;
proc sql;
create table want as
select name
, min(case when id = "A" then value else null end) as A length 8
from mylib.have_oracle
group by name
;
quit;
Also try running the Oracle code yourself, instead of using implicit pass thru.
proc sql;
connect to oracle ..... ;
create table want as
select * from connection to oracle
(
select name,
min(case when id = "A" then value else null end) as A length 8
from have_oracle
group by name
)
;
quit;
When I try to reproduce this in Oracle I get the result you are looking for so I suspect it has something to do with SAS (which I'm not familiar with).
with t as (
select 'Joe' name, 'A' id, 'TLO' value from dual union all
select 'Joe' name, 'B' id, 'IKSK' value from dual union all
select 'Joe' name, 'C' id, 'Yes' value from dual
)
select name
, min(case when id = 'A' then value else '' end) as a
from t
group by name;
NAME A
---- ----
Joe TLO
Unrelated, if you are only interested in id = 'A' then a better query would be:
select name
, min(value) as a
from t
where id = 'A'
group by name;
I'm working in Oracle 12.2.
I've got a complex query the results of which I would like to receive as a CLOB in JSON format. I've looked into json_object, but this means completely rewriting the query.
Is there a way to simply pass the ref cursor or result set and receive a JSON array with each row being a JSON object inside?
My query:
SELECT
*
FROM
(
SELECT
LABEL_USERS.*,
ROWNUM AS RANK ,
14 AS TOTAL
FROM
(
SELECT DISTINCT
SEC_VS_USER_T.USR_ID,
SEC_VS_USER_T.USR_FIRST_NAME,
SEC_VS_USER_T.USR_LAST_NAME,
SEC_USER_ROLE_PRIV_T.ROLE_ID,
SEC_ROLE_DEF_INFO_T.ROLE_NAME,
1 AS IS_LABEL_MANAGER,
LOWER(SEC_VS_USER_T.USR_FIRST_NAME ||' '||SEC_VS_USER_T.USR_LAST_NAME) AS
SEARCH_STRING
FROM
SEC_VS_USER_T,
SEC_USER_ROLE_PRIV_T,
SEC_ROLE_DEF_INFO_T
WHERE
SEC_VS_USER_T.USR_ID = SEC_USER_ROLE_PRIV_T.USR_ID
AND SEC_VS_USER_T.USR_SITE_GRP_ID IS NULL
ORDER BY
UPPER(USR_FIRST_NAME),
UPPER(USR_LAST_NAME)) LABEL_USERS) LABEL_USER_LIST
WHERE
LABEL_USER_LIST.RANK >= 0
AND LABEL_USER_LIST.RANK < 30
I couldn't find a procedure which I could use to generate the JSON, but I was able to use the new 12.2 functions to create the JSON I needed.
SELECT JSON_ARRAYAGG( --Used to aggregate all rows into single scalar value
JSON_OBJECT( --Creating an object for each row
'USR_ID' VALUE USR_ID,
'USR_FIRST_NAME' VALUE USR_FIRST_NAME,
'USR_LAST_NAME' VALUE USR_LAST_NAME,
'IS_LABEL_MANAGER' VALUE IS_LABEL_MANAGER,
'SEARCH_STRING' VALUE SEARCH_STRING,
'USR_ROLES' VALUE USR_ROLES
)returning CLOB) AS JSON --Need to cpecify CLOB, otherwise the result is limited by VARCHARC2(4000)
FROM
(
SELECT * FROM (
SELECT LABEL_USERS.*, ROWNUM AS RANK, 14 AS TOTAL from
(SELECT
SEC_VS_USER_T.USR_ID,
SEC_VS_USER_T.USR_FIRST_NAME,
SEC_VS_USER_T.USR_LAST_NAME,
1 AS IS_LABEL_MANAGER,
LOWER(SEC_VS_USER_T.USR_FIRST_NAME ||' '||SEC_VS_USER_T.USR_LAST_NAME) AS SEARCH_STRING,
(
SELECT --It is much easier to create the JSON here and simply use this column in the outer JSON_OBJECT select
JSON_ARRAYAGG(JSON_OBJECT('ROLE_ID' VALUE ROLE_ID,
'ROLE_NAME' VALUE ROLE_NAME)) AS USR_ROLES
FROM
(
SELECT DISTINCT
prv.ROLE_ID,
def.ROLE_NAME
FROM
SEC_user_ROLE_PRIV_T prv
JOIN
SEC_ROLE_DEF_INFO_T def
ON
prv.ROLE_ID = def.ROLE_ID
ORDER BY
ROLE_ID DESC)) AS USR_ROLES
FROM
SEC_VS_USER_T,
SEC_USER_ROLE_PRIV_T,
SEC_ROLE_DEF_INFO_T
WHERE
SEC_VS_USER_T.USR_ID = SEC_USER_ROLE_PRIV_T.USR_ID
AND SEC_USER_ROLE_PRIV_T.ROLE_PRIV_ID = SEC_ROLE_DEF_INFO_T.ROLE_ID
AND SEC_VS_USER_T.USR_SITE_GRP_ID IS NULL
ORDER BY UPPER(USR_FIRST_NAME),
UPPER(USR_LAST_NAME))LABEL_USERS)) LABEL_USER_LIST
WHERE LABEL_USER_LIST.RANK >= 0--:bv_Min_Rows
AND LABEL_USER_LIST.RANK < 30--:bv_Max_Rows
I have sample Data like:
Table empdata:
Name Desig Sal
-------------------------
john staff 26000
sen owner 50000
smith assistant 10000
i want to print each of the columns like
Current field value is : John
Current field value is : staff
Current field value is : 26000
Current field value is : sen
Current field value is : owner
Current field value is : 50000.. and so on
I am able to use cursor to fetch the emp data:
cursor c1 is
select name, desig, sal from empdata;
but i want to iterate over the columns too. I have shown 3 columns here, but there are atleast 30 columns in actual data, and i would like to print each of the field.
Please help.
Hi you can use this kind basic code.
begin
for i in (select * from emp where rownum < 5)
Loop
dbms_output.put_line('Current field value is: '||i.Emp_id);
dbms_output.put_line('Current field value is: '||i.emp_name);
end loop;
end;
If I understand you correctly, I think you're after something like:
select name,
desig,
sal,
(select approved from approval_table apv1 where apv1.data = emp.name) name_aprvd,
(select approved from approval_table apv2 where apv2.data = emp.desig) desig_aprvd,
(select approved from approval_table apv3 where apv3.data = emp.sal) sal_aprvd
from empdata emp;
Quite what you expect to do with the information once you've got it, I'm not sure. Maybe you return this as a cursor? Maybe you pass it into a procedure? I'm not sure, but hopefully you have enough information to sort out your requirement?
I am trying to create a view in oracle which is already defined in DB2,in the DB2 view all date column having cast function , Below i have created a view by taking one date column from the view. Note:COBDATE column having number datatype as for the design. i am getting ORA-00936:missing expression error.
Create View MYVIEWV1 as (Select
A.COBDATE ,
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
(case when (COBDATE = 0)
then CAST(NULL AS DATE)
else
date(SUBSTR(COBDATE,1,4) ||
'-'||SUBSTR(COBDATE,5,2) ||
'-'||SUBSTR(COBDATE,7,2))
end ) as COBDATE2
from MYTBLT1 A;
please suggest how i can convert this to oracle syntax?
The cast isn't the issue, though it isn't really needed. The 'missing expression' error is reported against line 7 column 4, which is the call to the date() function - which doesn't exist in Oracle. It's expecting a date literal to follow the keyword date, not parentheses or function arguments.
You can use the to_date() function instead, with a format model matching the way you're constructing the first argument. You said cobdate is a number but you're treating it as a string so I'll continue to do that implicitly...
create table mytblt1 (cobdate number);
insert into mytblt1 values (20141225);
insert into mytblt1 values (0);
create view myviewv1 as
select cobdate,
case when cobdate = 0
then null -- or with unnecessary cast: cast(null as date)
else
to_date(substr(cobdate,1,4)
||'-'||substr(cobdate,5,2)
||'-'||substr(cobdate,7,2),
'YYYY-MM-DD')
end as cobdate2
from mytblt1;
select * from myviewv1;
COBDATE COBDATE2
---------- -------------------
20141225 2014-12-25 00:00:00
0
desc myviewv1
Name Null Type
-------- ---- ------
COBDATE NUMBER
COBDATE2 DATE
With a cut-down date format model - so you don't have to worry about the - separators - you can simplify it further:
create view myviewv1 as
select cobdate,
case when cobdate = 0
then null -- cast(null as date)
else
to_date(cobdate, 'YYYYMMDD')
end as cobdate2
from mytblt1;
Or you can move the case inside the function call:
create view myviewv1 as
select cobdate,
to_date(case when cobdate = 0 then null else cobdate end, 'YYYYMMDD') as cobdate2
from mytblt1;
Nulls don't need casting. Just use NULL on its own.
case when COBDATE = 0 then NULL
else <some date> end as COBDATE2
Don't need all those brackets either.
I have a query which I run on a table TXN_DEC(id, resourceid, usersid, date, eventdesc) which return distinct count of users for a given date-range and resourceid, group by date and eventdesc (each resource can have 4 to 5 eventdesc)
if there is no value of distinct users count on a date in the range, for an eventdesc, then it skips that date row in the resultset.
I need to have all date rows in my resultset or collection such that if there is no value of count for a date,eventdesc combination, then its value is set to 0 but that date still exists in the collection..
How do I go about getting such a collection
I know getting the final dataset entirely from the query result would be too complicated,
but I can use collections in groovy to modify and populate my map/list to get the data in the required format
something similar to following: if
input date range = 5th Feb to 3 March 2011
DataMap = [dateval: '02/05/2011' eventdesc: 'Read' dist_ucnt: 23,
dateval: '02/06/2011' eventdesc: 'Read' dist_ucnt: 23,
dateval: '02/07/2011' eventdesc: 'Read' dist_ucnt: 0, -> this row was not present in query resultset, but row exists in the map with value 0
....and so on till 3 march 2011 and then whole range repeated for each eventdesc
]
If you want all dates (including those with no entries in your TXN_DEC table) for a given range, you could use Oracle to generate your date range and then use an outer join to your existing query. Then you would just need to fill in null values. Something like:
select
d.dateInRange as dateval,
'Read' as eventdesc,
nvl(td.dist_ucnt, 0) as dist_ucnt
from (
select
to_date('02-FEB-2011','dd-mon-yyyy') + rownum - 1 as dateInRange
from all_objects
where rownum <= to_date('03-MAR-2011','dd-mon-yyyy') - to_date('02-FEB-2011','dd-mon-yyyy') + 1
) d
left join (
select
date,
count(distinct usersid) as dist_ucnt
from
txn_dec
where eventDesc = 'Read'
group by date
) td on td.date = d.dateInRange
That's my purely Oracle solution since I'm not a Groovy guy (well, actually, I am a pretty groovy guy...)
EDIT: Here's the same version wrapped in a stored procedure. It should be easy to call if you know the API....
create or replace procedure getDateRange (
p_begin_date IN DATE,
p_end_date IN DATE,
p_event IN txn_dec.eventDesc%TYPE,
p_recordset OUT SYS_REFCURSOR)
AS
BEGIN
OPEN p_recordset FOR
select
d.dateInRange as dateval,
p_event as eventdesc,
nvl(td.dist_ucnt, 0) as dist_ucnt
from (
select
p_begin_date + rownum - 1 as dateInRange
from all_objects
where rownum <= p_end_date - p_begin_date + 1
) d
left join (
select
date,
count(distinct usersid) as dist_ucnt
from
txn_dec
where eventDesc = p_event
group by date
) td on td.date = d.dateInRange;
END getDateRange;