I have been asked for a query to write by using all sql clauses like group by, where, having, order by in a single query. I just wrote the below query but I did not get out put. select deptno, max(sal) from emp group by deptno having deptno > ( select distinct deptno from emp where deptno >= 20)
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I have a requirement where I have to return data as per filter clauses provided on the front end, which may or may not be filled as per the users' choice.
To create a test case, I have created a query joining the emp and dept tables and I add the where clauses dynamically depending on whether the filter has been provided or not.
CREATE OR REPLACE TYPE emp_ot AS OBJECT (
empno NUMBER(4),
ename VARCHAR2(10),
[Code]....
It works very well, the 'literals' are being converted into bind variables (due to CURSOR_SHARING being set to SIMILAR) and the optimizer is able to figure out the correct execution path every time, although it is true that potentially 5 versions of this query will be sitting in the shared pool, but the DBAs are happy to live with that.
Going forward in version 12, CURSOR_SHARING=SIMILAR will be deprecated and the DBAs are not happy for us to write this sort of code anymore.
Is there a suitable way to achieve what this piece of code does?
I have tried and tested this method:
SELECT emp.empno, emp.ename, emp.job, dept.deptno, dept.dname
FROM emp, dept
WHERE emp.deptno = dept.deptno
AND emp.empno = NVL(p_empno, emp.empno)
AND emp.ename LIKE NVL(p_ename, emp.ename)||'%'
...
but the query takes far longer to execute in this manner (that is using my real tables).
I have a table name as angdata77 having attributes like asigno..i want to retrieve data from angdata77 by using both group by & order by clauses.. for total count..am using the query as
select asigno,count(*) from angdata77 group by asigno order by asigno;
Is there any other query for retrieving the data from angdata77
I have oracle 10g R2 on windows.I have two tables and say table A ant Table B. Both have column Total_amount. There are primary key's on Both tables.
Sample query
SELECT A.EMPNO,A.EMP_CODE,nvl(A.TOTAL_AMOUNT,0) "A_TOTAL_AMOUNT",
nvl(B.TOTAL_AMOUNT,0) "B_TOTAL_AMOUNT",(nvl(A.TOTAL_AMOUNT,0) - nvl(B.TOTAL_AMOUNT,0)) "DIFFERENCE"
FROM A, B
WHERE A.EMPNO =B.EMPNO (+)
AND A.EMP_CODE = B.EMP_CODE (+)
AND round((nvl(A.TOTAL_AMOUNT,0) - nvl(B.TOTAL_AMOUNT,0)),3) <> 0Above query retrives only Non-matching rows.
I need to retrive :-
1)output of the query shown above and
2)Records which are present in B and not in A.
If it possible to display Tool Tip of a Column Require to Display the Data contain in that Column.
View 11 Replies View RelatedFor external tables does not require any database space.But where the external tables are storing.
View 3 Replies View Relatedwhat privilege is required to run dbms_stats package for gathering table and schema statistics.
SQL> show user
USER is "JACK"
SQL>
SQL> select * from user_sys_privs;
no rows selected
SQL> select * from user_role_privs;
no rows selected
SQL> select * from role_sys_privs;
no rows selected
SQL> exec dbms_stats.gather_table_stats('JACK','EN1')
PL/SQL procedure successfully completed.
I revoke all the privileges from JACK user but still i am able to gather stats for a table.what privilege is require to gather stats.
I have made an application in forms 6i. Now i want if user can update, or modify the data it will required automatic authentication. Administrator will gives his password then the updation will continue otherwise rollback the transaction.
View 1 Replies View RelatedHow to find non-indexed queries and columns that require indexes?
View 3 Replies View RelatedWhy do export-import require temporary tablespace? Since export-import do behave like DMLs, when does temporary tablespace be needed by datapump utility?
View 2 Replies View RelatedI have inherited a query that union alls 2 select statements, I added a further field to one of the select statements ( a date field). However I need to add another dummy field to the 2nd select statement so the union query marries up I have tried to do this by simply adding a
select
'date_on'
to add a field called date on populated by 'date_on' (the name of the column in the first query)
however when I run the union query i get the error Ora-01790 expression must have same datatype as corresponding expression.
I have a dynamic query stored in a function that returns a customized SQL statement depending on the environment it is running in. I would like to create a Materialized View that uses this dynamic query.
View 1 Replies View RelatedI have data in a table and another in XML file,I used SQL query to retrive the data placed on the table, and link this query with XML query that retrieves the data stored in the xml file. The data stored in the table and xml file sharing a key field, but the xml contents are less than what in the table.I want to show only the data shared between the two queries, how can I do that?
e.g.:
Table emp:
e_id | e_name | e_sal
023 | John | 6000
143 | Tom | 9000
876 | Chi | 4000
987 | Alen | 7800
XML File
<e_id>
143
876
So, I want the output to be:
e_id | e_name | e_sal | e_fee
143 | Tom | 9000 | 300
876 | Chi | 4000 | 100
I am looking to simplify the below query,
DELETE FROM A WHERE A1 IN (SELECT ID FROM B WHERE BID=0) OR A2 IN (SELECT ID FROM B WHERE BID=0)
Since both the inner queries are same,I want to extract out to a local variable and then use it.
Say,
Array var = SELECT ID FROM B WHERE BID=0;
And then ,
DELETE FROM A WHERE A1 IN (var) OR A2 IN (var)
How to do this using SQLPLUS?
I have the following four tables with the following structures Table A
ColA1 ColA2 ColA3 ColA4 ColA5 AA 100 CC DD EE
Table B
ColB1 ColB2 ColB3 ColB4 ColB5 AA 100 40452 A9 CDE
when these two tables were joined like the following:
Select colA1,ColA2, ColA3, ColA4, ColB3,ColB4, ColB5 from table A Left outer join (select ColB3, ColB4, ColB5 from table B where colB3 = (select max(colB3) from table B ) on (colA1 = colB1 and ColA2 = col B2)
Now i have to join the next table C with table B
Table C structure is
ColD1 ColD2 ColD3 Desc1 A9 Executive Desc1 A7 Engineer
I have the common column such as ColD2 and colB4 to get the Col D3
how do i join the existing query + join between table b and table c?
how to achieve F11(Query mode) and Execute Query in Oracle Forms?
View 1 Replies View RelatedI have a query that is pulling back more rows when I use the dblink than when I hit the linked database directly.
For example:
select
x,y,z
from
mytable@dblink
returns 788,324 rows
while
select
x,y,z
from
mytable
returns 712,102 rows
It's the exact same query, with the only difference being the dblink. It's not pulling the data into a cursor or array, it's a simple, straightforward query on a remote database.
Is there a technique to getting a Top-N query to work as a sub-select in a larger query -or- is there another way to generate Top-N like results that works as a sub-select?
Background:
We have a large query that is being used to build an export from a legacy HR system to a new one. Amount the data needed in the export is the employees primary phone number.
The legacy HR system allows multiple phone numbers to be stored in a simple table structure:
SELECT emp_id, phone_type, phone_number
FROM employee_phones
emp_idphone_typephone_number
------- --------------- -------------------
46021CELL2222222222
46021HOME1111111111
46021WORK3333333333
The new HR system does allow for multiple phone numbers, however they need a primary phone number identified and stored with the employee master information. (Subsequent phone numbers get stored in alternate table.)
From a business perspective, we have decided that if they have a HOME phone in the legacy system that should be the primary in the new system, if no HOME phone, then WORK, if no WORK then CELL.
That can be represented as:
SELECT *
FROM employee_people_phones
WHERE emp_id = '46021'
ORDER BY decode(phone_type, 'HOME', 'a', 'WORK', 'b', 'CELL', 'c', 'z')
emp_idphone_typephone_number
------- --------------- -------------------
46021HOME1111111111
46021WORK2222222222
46021CELL3333333333
Or similarly with Top N concept:
SELECT *
FROM (SELECT *
FROM employee_people_phones
WHERE emp_id = '46021'
ORDER BY decode(phone_type, 'HOME', 'a', 'WORK', 'b', 'CELL', 'c', 'z')) results
WHERE ROWNUM = 1
emp_idphone_typephone_number
------- --------------- -------------------
46021HOME1111111111
Or really what I want in my export:
SELECT phone_number
FROM (SELECT phone_number
FROM employee_people_phones
WHERE emp_id = '46021'
ORDER BY decode(phone_type, 'HOME', 'a', 'WORK', 'b', 'CELL', 'c', 'z')) results
WHERE ROWNUM = 1
phone_number
-------------------
1111111111
However, when the Top-N query is added as a sub-select in a larger query using the employee id from the larger query (WHERE emp_id = export.emp_id), it fails saying that �export.emp_id� is not a valid id.
(SELECT phone_number
FROM (SELECT phone_number
FROM employee_people_phones
WHERE emp_id = export.emp_id
ORDER BY decode(phone_type, 'HOME', 'a', 'WORK', 'b', 'CELL', 'c', 'z')) results
WHERE ROWNUM = 1)
1.Any way around this? Is it possible to put a Top-N (with a WHERE clause using data from the main query) in a sub-select?
2.Any alternatives (other than Top-N) to delivering a ROWNUM=1 result with a �custom� ORDER BY statement?
Other Notes: Yes, we know we could do two queries in the data conversion first deliver the bulk data to the target table, and then update with the phone numbers. However, for multiple reasons, that is less than desirable.
I am having a Select query(below Query1) and I want to use one column(sum(col4)) from this Select query to be displayed in another Select query(Query 2). how to display this.
Query 1 :-
select a.col1,a.col2,b.col3,sum(b.col4)
from tab a, tab b
where a.key1=b.key1 and a.key2=b.key2
group by a.col1,a.col2,b.col3
Query 2 :-
select a.col1,a.col2,b.col3,sum(b.col6)
from tab a, tab b
where a.key1=b.key1 and a.key2=b.key2
group by a.col1,a.col2,b.col3,b.col5
This query is written in inner join, can any one try to write using sub query.
SELECT B.CNO
FROM CUSTEN A
INNER JOIN ORDS B
ON A.CNO = B.CNO
AND A.PRNO = B.PRNO
[Code]...
I have the folloiwng two queries:
Query_1: select count(*) yy from table1;
Query_2: select count(*) zz from table2;
I need to compute the following:
var:=(yy/zz)*100
How can I achieve this in a single query?
I have a a table like with columns ( date_field, client_id(c_id), transaction_id(trx_id), mobile, amount )
table example data like
date_fieldc_idtrx_idmobileamount
24-JAN-1215100100120111111100100
24-JAN-1217100100220111111112150
24-JAN-1215100100320111111113100
24-JAN-1216100100420111111114200
24-JAN-1215100100520111111115100
24-JAN-1216100100620111111116100
24-JAN-1218100100720111111117100
24-JAN-1216100100820111111118100
24-JAN-1215100100920111111119200
24-JAN-1216100101020111111110100
24-JAN-1215100101120111111111100
24-JAN-1216100101220111111112100
24-JAN-1215100101320111111113100
Now using the unique index (Trx_id) I need to get max 3 records for each client (c_id).
Expecting result should be
date_fieldc_idtrx_idmobileamount
24-JAN-1217100100220111111112150
24-JAN-1218100100720111111117100
24-JAN-1216100100820111111118100
24-JAN-1216100101020111111110100
24-JAN-1216100101220111111112100
24-JAN-1215100100920111111119200
24-JAN-1215100101120111111111100
24-JAN-1215100101320111111113100
I have this query and I want to get the COUNT:
SELECT first_np AS n_p FROM dvc
UNION
SELECT second_np AS n_p FROM dvc
UNION
SELECT n_p FROM dc;
This returns one column which is the n_p; how do I get the count of n_p?
I am facing problem with a select query in oracle 10g database from vb.net.It was working for oracle 9. The select statement I have written is as follows
Str=" select UCC.table_name, UCC.constraint_name, UCC.column_name, UCC.position, UC.constraint_type " & "from USER_CONS_COLUMNS UCC,USER_CONSTRAINTS UC " & "where (UCC.constraint_name = UC.constraint_name) " & "and UC.constraint_type = 'P' " & "and UCC.table_name = " & " '" & TableName & "'"
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I have one table in database that contains 3 foreign keys to another tables(this three tables name are: manager,worker and employee). in each row only one foreign key is filled.I need to write one query that with attention which column of fk is filled in where clause specified condition is performed. I write simple query in jpa but doesn't work properly
select b from allEmployees b where b.manager.name= :name OR b.worker.name = :name OR b.employee.name= :name
How do I get a query of each sequence and who has the permissions to it?
View 1 Replies View RelatedHow to use see the query plan.
View 1 Replies View RelatedI am looking to get the maximum value for every 24 hour period for a month. So for example my date range can be defined by...
select to_date('&date','mm yyyy')-1 + level as DateRange
from dual
connect by level <= '&days'
...where I can provide the first date of the month and number of days in the month or a lesser value if less time is required. So, the results of the above query plus 24 for the range. I thought a some Googling would provide me what I needed, but my search came up empty.
I was hoping to do something like this...
select utctime, max(value) from table where utctime between.
I am facing the following issue while generating xml using a sql query. I get the below given table using a query.
CODE ID MARK
==================================
1 4 2331 809
2 4 1772 802
3 4 2331 845
4 5 2331 804
5 5 2331 800
6 5 2210 801
I need to generate the below given xml using a query
<data>
<CODE>4</CODE>
<IDS>
<ID>2331</ID>
<ID>1772</ID>
</IDS>
<MARKS>
[code].....
NOTe: IDS which are distinct needs to be displayed. ALL MARKS should be displayed though there are duplicates.
SELECT so.* FROM shipping_order so WHERE (so.submitter = 20)
OR (so.requestor_id IN (SELECT poc.objid FROM point_of_contact poc WHERE poc.ain = 20))
OR so.objid IN (SELECT ats.shipping_order_id FROM ac_to_so ats WHERE (ats.access_control_id IN (selectac. objid FROM access_control ac WHERE ac.ain = 20
OR ac.group IN ('buyers', 'managers'))))
rewrite this query to use joins. That would greatly simplify my sql query building code. The ids, objids, submitter, ain are numeric and group is a varchar.
