How to get first emp for each dept?

Hi,
I need to do a query to pick up one employee (the first one based on ename or empno)from each department, but I don't want to use min function (for some reason it didn't work on my real date), rather I like to use something like this: The problem is I can only pick one instead of one for each dept.
select ee.* from
(select * from emp
order by ename
) ee,
emp e
where rownum <2
and e.deptno=ee.deptno
Thanks

How about this (if I understood your question correctly)?
select * from
(select distinct deptno from emp) depts,
(select deptno, min(ename) from emp group by deptno) ees
where ees.deptno = depts.deptno;
Test:
14:10:26 ==> create table emp (deptno number, ename varchar2(50));
Table created.
14:10:27 ==> insert into emp values (10, 'Joe');
1 row created.
14:10:27 ==> insert into emp values (10, 'Mary');
1 row created.
14:10:27 ==> insert into emp values (10, 'Ethel');
1 row created.
14:10:27 ==> insert into emp values (20, 'Luke');
1 row created.
14:10:27 ==> insert into emp values (10, 'Sue');
1 row created.
14:10:27 ==> insert into emp values (20, 'Bob');
1 row created.
14:10:27 ==> insert into emp values (30, 'Randy');
1 row created.
14:10:28 ==> select * from
14:10:35 2 (select distinct deptno from emp) depts,
14:10:35 3 (select deptno, min(ename) from emp group by deptno) ees
14:10:35 4 where ees.deptno = depts.deptno;
DEPTNO DEPTNO MIN(ENAME)
10 10 Ethel
20 20 Bob
30 30 Randy

Similar Messages

How to Get Missing Dates for Each Support Ticket In My Query?

Hello -
I'm really baffled as to how to get missing dates for each support ticket in my query. I did a search for this and found several CTE's however they only provide ways to find missing dates in a date table rather than missing dates for another column
in a table. Let me explain a bit further here -
I have a query which has a list of support tickets for the month of January. Each support ticket is supposed to be updated daily by a support rep, however that isn't happening so the business wants to know for each ticket which dates have NOT been
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I'll try and provide some sample data as an example -
CREATE TABLE #Tickets
TicketNo VARCHAR(4)
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INSERT INTO #Tickets VALUES ('44BS', '2014-01-01')
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INSERT INTO #Tickets VALUES ('32VT', '2014-01-03')
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I'm sure this is easier than i'm making it. However, after playing around for a couple of hours my head hurts and I need sleep. If anyone can help, you'd be a job-saver :)
Thanks!!

CREATE TABLE #Tickets (
TicketNo VARCHAR(4)
,DateUpdated DATETIME
GO
INSERT INTO #Tickets
VALUES (
'44BS'
,'2014-01-01'
INSERT INTO #Tickets
VALUES (
'44BS'
,'2014-01-05'
INSERT INTO #Tickets
VALUES (
'44BS'
,'2014-01-07'
INSERT INTO #Tickets
VALUES (
'32VT'
,'2014-01-03'
INSERT INTO #Tickets
VALUES (
'32VT'
,'2014-01-09'
INSERT INTO #Tickets
VALUES (
'32VT'
,'2014-01-11'
GO
GO
SELECT *
FROM #Tickets
GO
GO
CREATE TABLE #tempDist (
NRow INT
,TicketNo VARCHAR(4)
,MinDate DATETIME
,MaxDate DATETIME
GO
CREATE TABLE #tempUnUserdDate (
TicketNo VARCHAR(4)
,MissDate DATETIME
GO
INSERT INTO #tempDist
SELECT Row_Number() OVER (
ORDER BY TicketNo
) AS NROw
,TicketNo
,Min(DateUpdated) AS MinDate
,MAx(DateUpdated) AS MaxDate
FROM #Tickets
GROUP BY TicketNo
SELECT *
FROM #tempDist
GO
-- Get the number of rows in the looping table
DECLARE @RowCount INT
SET @RowCount = (
SELECT COUNT(TicketNo)
FROM #tempDist
-- Declare an iterator
DECLARE @I INT
-- Initialize the iterator
SET @I = 1
-- Loop through the rows of a table @myTable
WHILE (@I <= @RowCount)
BEGIN
-- Declare variables to hold the data which we get after looping each record
DECLARE @MyDate DATETIME
DECLARE @TicketNo VARCHAR(50)
,@MinDate DATETIME
,@MaxDate DATETIME
-- Get the data from table and set to variables
SELECT @TicketNo = TicketNo
,@MinDate = MinDate
,@MaxDate = MaxDate
FROM #tempDist
WHERE NRow = @I
SET @MyDate = @MinDate
WHILE @MaxDate > @MyDate
BEGIN
IF NOT EXISTS (
SELECT *
FROM #Tickets
WHERE TicketNo = @TicketNo
AND DateUpdated = @MyDate
BEGIN
INSERT INTO #tempUnUserdDate
VALUES (
@TicketNo
,@MyDate
END
SET @MyDate = dateadd(d, 1, @MyDate)
END
SET @I = @I + 1
END
GO
SELECT *
FROM #tempUnUserdDate
GO
GO
DROP TABLE #tickets
GO
DROP TABLE #tempDist
GO
DROP TABLE #tempUnUserdDate
Thanks,
Shridhar J Joshi
<If the post was helpful mark as 'Helpful' and if the post answered your query, mark as 'Answered'>

Qry:How to get different price for each price list (variable area) in order

1-How to get different price for each price list (variable area) in order for sale. for the opportunity to display and select multiple prices.
2- I add a location store from a table in line item and I want to see this area in order,.
I 'm created 2 field location(item line and order), 1 table location
I tried this for exemple : select $ [userfieldlocation.OITW]

Thanks Suda for your answer,
the Formatted Search for prices is OK, but for the Item locations in warehouse this is not so simple,
I must have several (at least 2) locations for the item in the Warehouse and a track of this location and search possibilities.
read carefully and imagine how (Management warehouse locations)
I added a user table '@Location' who linked to a user field 'U_Location in Item master data --> lnventory data line and an ather user field 'U_Location' in sales order
I met the value of location in the table (list of locations for any warehouse), I select the location of each item while receiving merchandise in the user field of inventory data line (Item M data) and this value appears in the sales order 'U_Location' user field ( only the location value in the default warehouse for this Item)
or
create an user field 'location' in Good receipt PO to fill it while receiving merchandise that appears in the sales order to give possibility to find/select the location of the item at this order and in Item master data
I think we will use all these tables
@LOCATION
PDN1
OITM
OITW
OWHS
RDR1
Juste a another question : where you found this and What is: ' 38.1.0 '
Is it in document (System information):Item=38 Pane=1 ??
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Creating view to get first row for each table !!

I am having tables(more than 10) which are related using foreign key and primary key relationship.
Example:
Table1:
T1Prim T1Col1 T1Col2
Table2
T2For T2Prim T2Col1 T2Col2 T2Col3
(here T2For will have value same as T1Prim and in my design it has same column name i.e. T1Prim)
Table3
T3For T3Prim T3Col1 T3Col2 T3Col3
(here T3For will have value same as T2Prim)
and so on.
The data in the tables is like For table1 there will be one record, for table2 there will be one record and for table 3 there are more than one records.
Can i view either the first record for each of them or all records from each of them by writing the following view.
I have written a view like this:
Create or replace view test (T1Prim,T1Col1, T1Col2,T2Prim,T2Col1 T2Col2, T2Col3, T3Prim,T3Col1, T3Col2, T3Col3)
As
Select
Table1.T1Prim,
Table1.T1Col1,
Table1.T1Col2,
Table2.T2Prim,
Table2.T2Col1,
Table2.T2Col2,
Table2.T2Col3,
Table3.T3Prim,
Table3.T3Col1,
Table3.T3Col2,
Table3.T3Col3
From
Table1,
Table2,
Table3
where
Table1.Prim = Table2.For
and Table2.Prim = Table3.For
When i ran the select statement on the view I am not getting any data. Whereas there is data when select is ran on individual table.
Can someone please tell me where i am goofing.
Thanks in the anticipation that i will get some hint to solve this.
Eagerly waiting for reply.
Thanks !!

I mean use a collection :
Collection Methods
A collection method is a built-in function or procedure that operates on collections and is called using dot notation. The methods EXISTS, COUNT, LIMIT, FIRST, LAST, PRIOR, NEXT, EXTEND, TRIM, and DELETE help generalize code, make collections easier to use, and make your applications easier to maintain.
EXISTS, COUNT, LIMIT, FIRST, LAST, PRIOR, and NEXT are functions, which appear as part of an expression. EXTEND, TRIM, and DELETE are procedures, which appear as a statement. EXISTS, PRIOR, NEXT, TRIM, EXTEND, and DELETE take integer parameters. EXISTS, PRIOR, NEXT, and DELETE can also take VARCHAR2 parameters for associative arrays with string keys. EXTEND and TRIM cannot be used with index-by tables.
For more information, see "Using Collection Methods".
Syntax
Text description of the illustration collection_method_call.gif
Keyword and Parameter Description
collection_name
This identifies an index-by table, nested table, or varray previously declared within the current scope.
COUNT
COUNT returns the number of elements that a collection currently contains, which is useful because the current size of a collection is not always known. You can use COUNT wherever an integer expression is allowed.
For varrays, COUNT always equals LAST. For nested tables, normally, COUNT equals LAST. But, if you delete elements from the middle of a nested table, COUNT is smaller than LAST.
DELETE
This procedure has three forms. DELETE removes all elements from a collection. DELETE(n) removes the nth element from an index-by table or nested table. If n is null, DELETE(n) does nothing. DELETE(m,n) removes all elements in the range m..n from an index-by table or nested table. If m is larger than n or if m or n is null, DELETE(m,n) does nothing.
EXISTS
EXISTS(n) returns TRUE if the nth element in a collection exists. Otherwise, EXISTS(n) returns FALSE. Mainly, you use EXISTS with DELETE to maintain sparse nested tables. You can also use EXISTS to avoid raising an exception when you reference a nonexistent element. When passed an out-of-range subscript, EXISTS returns FALSE instead of raising SUBSCRIPT_OUTSIDE_LIMIT.
EXTEND
This procedure has three forms. EXTEND appends one null element to a collection. EXTEND(n) appends n null elements to a collection. EXTEND(n,i) appends n copies of the ith element to a collection. EXTEND operates on the internal size of a collection. So, if EXTEND encounters deleted elements, it includes them in its tally. You cannot use EXTEND with index-by tables.
FIRST, LAST
FIRST and LAST return the first and last (smallest and largest) subscript values in a collection. The subscript values are usually integers, but can also be strings for associative arrays. If the collection is empty, FIRST and LAST return NULL. If the collection contains only one element, FIRST and LAST return the same subscript value.
For varrays, FIRST always returns 1 and LAST always equals COUNT. For nested tables, normally, LAST equals COUNT. But, if you delete elements from the middle of a nested table, LAST is larger than COUNT.
index
This is an expression that must yield (or convert implicitly to) an integer in most cases, or a string for an associative array declared with string keys.
LIMIT
For nested tables, which have no maximum size, LIMIT returns NULL. For varrays, LIMIT returns the maximum number of elements that a varray can contain (which you must specify in its type definition).
NEXT, PRIOR
PRIOR(n) returns the subscript that precedes index n in a collection. NEXT(n) returns the subscript that succeeds index n. If n has no predecessor, PRIOR(n) returns NULL. Likewise, if n has no successor, NEXT(n) returns NULL.
TRIM
This procedure has two forms. TRIM removes one element from the end of a collection. TRIM(n) removes n elements from the end of a collection. If n is greater than COUNT, TRIM(n) raises SUBSCRIPT_BEYOND_COUNT. You cannot use TRIM with index-by tables.
TRIM operates on the internal size of a collection. So, if TRIM encounters deleted elements, it includes them in its tally.
Usage Notes
You cannot use collection methods in a SQL statement. If you try, you get a compilation error.
Only EXISTS can be applied to atomically null collections. If you apply another method to such collections, PL/SQL raises COLLECTION_IS_NULL.
You can use PRIOR or NEXT to traverse collections indexed by any series of subscripts. For example, you can use PRIOR or NEXT to traverse a nested table from which some elements have been deleted.
EXTEND operates on the internal size of a collection, which includes deleted elements. You cannot use EXTEND to initialize an atomically null collection. Also, if you impose the NOT NULL constraint on a TABLE or VARRAY type, you cannot apply the first two forms of EXTEND to collections of that type.
If an element to be deleted does not exist, DELETE simply skips it; no exception is raised. Varrays are dense, so you cannot delete their individual elements.
PL/SQL keeps placeholders for deleted elements. So, you can replace a deleted element simply by assigning it a new value. However, PL/SQL does not keep placeholders for trimmed elements.
The amount of memory allocated to a nested table can increase or decrease dynamically. As you delete elements, memory is freed page by page. If you delete the entire table, all the memory is freed.
In general, do not depend on the interaction between TRIM and DELETE. It is better to treat nested tables like fixed-size arrays and use only DELETE, or to treat them like stacks and use only TRIM and EXTEND.
Within a subprogram, a collection parameter assumes the properties of the argument bound to it. So, you can apply methods FIRST, LAST, COUNT, and so on to such parameters. For varray parameters, the value of LIMIT is always derived from the parameter type definition, regardless of the parameter mode.
Examples
In the following example, you use NEXT to traverse a nested table from which some elements have been deleted:
i := courses.FIRST; -- get subscript of first element
WHILE i IS NOT NULL LOOP
-- do something with courses(i)
i := courses.NEXT(i); -- get subscript of next element
END LOOP;
In the following example, PL/SQL executes the assignment statement only if element i exists:
IF courses.EXISTS(i) THEN
courses(i) := new_course;
END IF;
The next example shows that you can use FIRST and LAST to specify the lower and upper bounds of a loop range provided each element in that range exists:
FOR i IN courses.FIRST..courses.LAST LOOP ...
In the following example, you delete elements 2 through 5 from a nested table:
courses.DELETE(2, 5);
In the final example, you use LIMIT to determine if you can add 20 more elements to varray projects:
IF (projects.COUNT + 20) < projects.LIMIT THEN
-- add 20 more elements
Related Topics
Collections, Functions, Procedures
http://download-west.oracle.com/docs/cd/B10501_01/appdev.920/a96624/13_elems7.htm#33054
Joel P�rez

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How to get row count(*) for each table that matches a pattern

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http://msdn.microsoft.com/en-us/library/ms179859.aspx
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New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

How to get the date for the first monday of each month

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Something like this:
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Edit:
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Hello,
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Is there a way to get the details for each hit in the portal database WCR_WEBCONTENTSTAT?

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If you can provide more data like sample input DML statements it would have been wonderful..
Assuming is , you need a pivot. Here is an article on basic Pivot..
http://sqlsaga.com/sql-server/how-to-use-pivot-to-transform-rows-into-columns-in-sql-server/
something like this may be..
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, ('ABC', '01/01/2014'),('Monitor', '02/01/2014')
;WITH CTE AS
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SELECT *
FROM
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Please mark as answer, if this has helped you solve the issue.
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Kindlly help.
Thanks.

*--ENSURE THAT age IS FIRST FIELD IN INTERNAL TABLE it_gir while declaring it.....
SORT it_gir BY age ASCENDING.
LOOP AT it_gir INTO wa_gir.
AT NEW age.
<b>*--if there are fields which are getting populated with **** instead of original values....then use below statement...</b>
read table it_gir index sy-tabix.
MOVE-CORRESPONDING wa_gir TO wa_final1.
APPEND wa_final1 TO it_final1.
clear wa_final1.
ENDAT.
ENDLOOP.
now it should definitely work.....
if not check in debugging mode if data exists or not....!!!
Regards
Vasu

XML DB: is it possible to get a row for each element in a container element?

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I run this simple query:
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Or, using the new-in-9.2 extractValue() operator so we don't have to remember the text() part:
select extractValue( value(list_of_color_elements), '.') as color
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TABLE( XMLSequence( extract( value(x),'/colors/color'))) colors.
And if the XMLType were instead in a column of XMLType named doc in a table xmltab, then we would have the syntax:
select extractValue( value(colors), '.') as color
from xmltab x, /* Important that this table comes earlier in the FROM clause! */
TABLE( XMLSequence( extract( x.doc ,'/colors/color'))) colorsOnce you get the hang of it, you'll see that the combination of TABLE(XMLSequence()) to "shred" XML nodes into rows, and XMLAgg() to aggregate fragments of XML across multiple rows back into a single document, is quite powerful.

How to get column names for a specific view in the scheme?

how to get column names for a specific view in the scheme?
TIA
Don't have DD on the wall anymore....

or this?
SQL> select text from ALL_VIEWS
2 where VIEW_NAME
3 ='EMP_VIEW';
TEXT
SELECT empno,ename FROM EMP
WHERE empno=10

How to get first emp for each dept?

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