Selecting A Set Of Records From One Table
Aug 19, 2010
I'm selecting a set of records from one table, for example: ID, description and date. From this I'm only wanting the latest inserted row. I've used the max function on the date which is fine, however, there are some records that have had their description changed. This then returns two values for one ID, the max for the original description and the max for the changed description.
I'm getting:
ID |Description |Date
1 ABC 01/01/2010
2 XYZ 02/03/2010
2 XYZ1 03/05/2010
When I want:
ID |Description |Date
1 ABC 01/01/2010
2 XYZ1 03/05/2010
As ID 2 with XYZ1 Description is the very latest row for that ID.
This is an audit table so the ID appears on numerous rows as it a composite key with date.
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Jul 17, 2013
Oracle 11gI have a large table of 125 million records - t3_universe. This table never gets updated or altered once loaded, but holds data that we receive from a lead company. I need to select records from this large table that fit certain demographic criteria and insert those into a smaller table - T3_Leads - that will be updated with regard to when the lead is mailed and for other relevant information. select records from this 125 million record table to insert into the smaller table.
I have tried a variety of things - views, materialized views, direct insert into smaller table...I think I am probably missing other approaches. My current attempt has been to create a View using the query that selects the records as shown below. Then use a second query that inserts into T3_Leads from this View V_Market. This is very slow. Can I just use an Insert Into T3_Leads with this query - it did not seem to work with the WITH clause? My Index on the large table is t3_universe_composite and includes zip_code, address_key, household_key.
CREATE VIEW V_Market asWITH got_pairs AS ( SELECT /*+ INDEX_FFS(t3_universe t3_universe_composite) */ l.zip_code, l.zip_plus_4, l.p1_givenname, l.surname, l.address, l.city, l.state, l.household_key, l.hh_type as l_hh_type, l.address_key, l.narrowband_income, l.p1_ms, l.p1_gender, l.p1_exact_age, l.p1_personkey, e.hh_type as filler_data, 1.p1_seq_no, l.p2_seq_no , ROW_NUMBER () OVER ( PARTITION BY l.address_key ORDER BY l.hh_verification_date DESC ) AS r_num FROM t3_universe e JOIN t3_universe l ON l.address_key = e.address_key AND l.zip_code = e.zip_code AND l.p1_gender != e.p1_gender
[code]....
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Jun 7, 2012
I have records like the following
Program_Name Effective_Date Valid_Flag
ABCD 2/10/2012 N
ABCD 2/14/2012 N
ABCD 2/20/2012 Y
ABCD 3/01/2012 N
ABCD 3/10/2012 N
[Code]...
I have to write a select statement to to keep the first record and then pull only the records when the Valid_Flag changed. The result set should be like below.
Program_Name Effective_Date Valid_Flag
ABCD 2/10/2012 N -- I have preserved the first record
ABCD 2/20/2012 Y -- Valid_Flag chages to a Y for teh first time and so on.
ABCD 3/01/2012 N
ABCD 3/14/2012 Y
ABCD 3/25/2012 N
ABCD 4/25/2012 Y
If there is no change in the flag, I do not have to pull that record.
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Dec 5, 2012
I have a table test with 10,000 records in it and 50 columns.I have to select those rows which contain values as "Sales Dum" in their field..For table with small number of colums i did this
SELECT * FROM tbl_website_dtl WHERE created_by like '%Sales%' or website_name like '%Sales%' or website_code like '%sales%';But should i do for table containing 50 columns.
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Jun 8, 2012
SQL> select * from v$version;
BANNER
--------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for 32-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - ProductionSET DEFINE OFF;
[code]....
10 rows selected.I want the output like as follows, all those missing date i need to carry on the last one's number
NBR_OF_S NBR_OF_C S_DATE
---------- ---------- ---------
34 40 01-MAY-12
27 29 01-APR-12
27 29 01-MAR-12
21 23 01-FEB-12
21 23 01-JAN-12
21 23 01-DEC-11
[code]....
The date value I have created for this sample is monthly, based on the condition the data value I may need to generate weekly also. That's Monthly or weekly either one.
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Mar 21, 2013
correct this one.
declare
v_ename varchar2(10):='emp';
begin
for j in (select ename from v_ename)
loop
dbms_output.put_line(j.ename);
end loop;
end;
getting error v_ename table does not exists. i should use v_ename, as i dont know the table name.
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Apr 24, 2012
I just want to know that "is it safe to select a columns using ROWID in a table?"
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Sep 26, 2013
I have a table with following structure:
CREATE TABLE ID_comments
(
ID CHAR(10 BYTE) NOT NULL,
S_COMMENTS VARCHAR2(255 BYTE),
P_COMMENTS VARCHAR2(255 BYTE),
C_COMMENTS VARCHAR2(255 BYTE)
);
For each Id, I can have multiple records.
Below is the insert script of one of the ID:
Insert into ID_comments values ('0813654254','','JR/0813653606 single','');
Insert into ID_comments values ('0813654254','','JR/0813653606 single','');
Insert into ID_comments values ('0813654254','','JR/0813653606 SINGLE','');
Insert into ID_comments values ('0813654254','','JR','');
[code].......
Now I want to select only one record from this table for an ID, which will have "not null" values for s_comments,p_comments,c_comments columns. If for some ID , there is no "not null" row for any column, then pick up the "null" row/value for that column.
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Jul 18, 2012
Is there any way to use * along with the default value while selecting on a table...I need something as follows:
select *, 'JUNK' from table_name;
(or)
select 'JUNK', * from table_name;I know it will not work.
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Jul 18, 2013
This is my table design:
REQUEST(R_ID,attr1,attr2)WIPS(R_ID,WIP,attr3,attr4)SHIPPING(WIP,attr5,attr6)
How do I limit my query to show the information from REQUEST but only where the all of the wips associated between REQUEST and WIPS are not in the SHIPPING table. For example, the SHIPPING table has all of the WIPS that have been shipped, I only want to show the REQUEST rows where all of the WIPS have not shipped.
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May 27, 2011
I am new to oracle and have an issue with selecting data from a table on date criteria.
select * from table1 t where t.DT BETWEEN TO_DATE(sysdate-1,'dd/mm/yyyy') AND sysdate
my understanding is that this should give me the data for just one day. but it is not.
What I want is, data for last 30days from today.
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Jul 27, 2012
I have a flat file as source wherein I am getting values like
Comp_id, Comp_name, ISIN, column_name, column_value
The structure is like this may contain multiple records like Comp_id, Comp_name, ISIN will be same, but column_name will contain the column_name to which its corresponding column_value needs to be populated to.
E.g. of Feed File -
Comp_id, Comp_name, column_name, column_value
1,HSBC,branch_name,HSBC-DELHI
1,HSBC,branch_add,24-Lajpat Nagar
1,HSBC,branch_phone,2322322
2,HSBC,branch_name,HSBC-MUMBAI
2,HSBC,branch_add,24Andheri
2,HSBC,branch_phone,4445221
2,HSBC,branch_postalcode,400023
Target table structure
Comp_id, Comp_name, branch_name, branch_add, branch_phone, branch_postalcode
I need to insert the above data to a table by selecting data from above scenario.
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May 11, 2010
I am working on Pro*C and i have a requirement where i need to select all the rows from a table into a c - structure variable. Since i get to know the no of rows in the table which is getting selected only at run time, i need to create a pointer variable to the structure and i'll allocate the size to it based on the count of rows in the table using malloc or calloc.I tried allocating memory using calloc and it does not show any error. But when i when the exec select statement run it shows an error.
Statements i have used:
struct common *comp;
struct common_ind *comp_i;
comp = (struct common*) calloc(rowcount, sizeof(struct common));
comp_i = (struct common_ind*) calloc(rowcount, sizeof(struct common_ind));
exec sql at db1 select * into :comp indicator :comp_i from tab1;
Error i get :
Stop Error: -2112
Stop Error: -1012
Stop Error: -1012
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Jun 1, 2010
I am trying to update records in the target table based on the records coming in from source. For instance, if the incoming record is present in the target table I would update them in the target else I would simply insert. I have over one million records in my source while my target has 46 million records. The target table is partitioned based on calendar key. I implement this whole logic using Informatica. Looking at the informatica session log I find that the informatica code is perfectly fine but its in the update part it takes long time (more than 5 days to update one million records). find the TARGET TABLE query and the UPDATE query as below.
TARGET TABLE:
CREATE TABLE OPERATIONS.DENIAL_REGRET_FACT
(
CALENDAR_KEY INTEGER NOT NULL,
DAY_TIME_KEY INTEGER NOT NULL,
SITE_KEY NUMBER NOT NULL,
RESERVATION_AGENT_KEY INTEGER NOT NULL,
LOSS_CODE VARCHAR2(30) NOT NULL,
PROP_ID VARCHAR2(5) NOT NULL,
[code].....
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Feb 7, 2012
We deleted millions of records from a table.
1.Is it necessary to reorganize a table and index after the deletion of records from table ? Because i see some change in table size after table and index reorganization.
2.Will re org table and index improve the database performance ?
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Mar 25, 2013
following is the requirement
External Table
WKSHT_FILE_EXT
wksht_line
Export Table
Wksht_export
global_idvarchar2(10)
wksht_linevarchar2(250)
[code]....
Step 1.Insert all records from the external table into the export table. Truncate the export table first
Step 2.Read in a record from the export map table
Step 3.Search through export table records looking for the key words BRANCH =. Compare the branch code with the branch code form the map table
Step 4.If a match is found mark all records in the export table for the worksheet with the global ID from the export map table as follows..The first line of a worksheet is marked by the words WKSHTS..The last line of the work sheet is marked by the words COMPANY CONFIDENTIAL..We will need to capture the line break so also mark the next line after the COMPANY CONFIDENTIAL line
Step 5.Continue with Steps 2 - 4 until all records have been processed from the export map table.
first I have to create a procedure ti insert data from external table to export table.Global id will be blank.it will be updated by the mapping table's Global Id when The EB COLUMN's data(i.e 8p,2Betc ) will match with the BRANC=NA,2Betc of the datasheet loaded from the external table.. FOLLOWING IS THE SAMPLE DATASHEET
WKSHTS AAAAA BBBBBBBBBBB ELECTRONICS INC. TIME REPORT-DATE PAGE
SORT - BR, SLSREP AEC FIELD SALES REPRESENTATIVE 16:14 09/21/12 1
BRANCH = 2B
EMPLOYEE NAME SALVAAG, GREGG Days in the Month 28
[code]....
THERE ARE 2 pages..I have to split this LONG REPORT STORED IN WKSHT_LINE COLUMN OF EXPORT TABLE to 2 records..like wise 500 pages are there means 500 records.. AND THEN FIND BRANCH= after that which two words will come i.e NA,2B etc if it will MATCH WITH MAPPING TABLE"S EB COLUMN"S DATA,THEN MAPPING TABLE's GLOBAL ID WILL BE UPDATED TO EXPORT TABLE's GLOBAL ID WHICH IS BLANK
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Mar 9, 2004
Trying to auto insert the newest records from one table into another Table. I have a vendor provided table that is part of my database (running Oracle 9i) so I can't change the underlying structure to it or their process stops fluxing. However, I can add a trigger to it. What I want to do is this:
When the vendor's software inserts a new row (through their own automated process) I want to insert data from that same new record into another table of my own. (where of course I can re-format it, etc., and make the data my own)
The original vendor table does not have a insertion timestamp field to work off of.What is the best way to trigger an insert off the latest inserted record? It works to replace all the records in the entire vendor table but I only want to insert one record at a time.
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May 9, 2010
how to select the sixth highest earner in my employees table.how to select 6th lowest earner..
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Jan 23, 2013
I have got a procedure that successfully creates an oracle external table and populates it with the contents of a file. This works fine until I have a situation where one of the fields is a VARCHAR2(2) and I try to insert say, a 5 character value. When this happens the record in question does not get populated in the external table (and rightly so), but I could do with working out if there is a discrepancy in the number of records in the file and the number of records that actually make it into the table so I could inform the user that there is a problem.
I have attached the code that creates the external table and populates it.
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Jul 3, 2011
I am having trouble selecting the row that has max(pay_period) of 13. Here is some test data.
CREATE TABLE TESTME
(
SSN VARCHAR2(11 BYTE),
PAY_PERIOD VARCHAR2(3 BYTE),
PAY_YEAR NUMBER,
KRONOS_ID VARCHAR2(6 BYTE),
LAST_NAME VARCHAR2(15 BYTE),
FIRST_NAME VARCHAR2(14 BYTE),
ADJ_SALARY NUMBER
)
[code]....
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Sep 7, 2007
Have a table like this:
ID1ID2DATEID2Value
1121/1/20066
1241/1/2006400
1246/1/2006410
1366/1/2006100
2121/1/20077
2246/1/2007350
2247/1/2007360
I need to return 1 row for each ID1 value - and only the ID2 value of 24 and only the most recently dated record for the multiple ID2 values - query would return:
1246/1/2006410
2247/1/2007360
I have worked and worked on this and I am still stumped (part of the problem may be I am also trying to make this work in Crystal Reports but that is for another day). I need to make this work in Oracle first.
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Jun 18, 2013
I want to select data inserted in the table for that day only.
Table name -->ADJCOLUMNS
i want to select areAccount_no-->number datatype TRANSACT_DATE-- NOT NULL DATE I have written the query below .Is the below query correct.
select account_no,to_char(TRANSACT_DATE,'DD-MON-YYYY HH24:MI:SS') T_date from adj
where to_char(TRANSACT_DATE,'DD-MON-YYYY HH24:MI:SS') between
to_char(TRUNC(sysdate),'DD-MON-YY hh24:mi:ss') AND
to_char(TRUNC(sysdate+1) - 1/86400,'DD-MON-YY hh24:mi:ss');
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Jul 6, 2012
I need to find the top two values value for each ID Number:
CREATE TABLE TABLE_1
(ID number (8),
NUMBER_1 number (2),
NUMBER_2 number (2),
NUMBER_3 number (2),
NUMBER_4 number (2));
INSERT INTO TABLE_1
VALUES
('12345679','30','25','30','05');
INSERT INTO TABLE_1
VALUES
('99999999','30','25','15','05');
Desired Result:
ID Number 1st 2nd
12345679 30 30
99999999 30 25
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Mar 29, 2013
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE 11.2.0.3.0 Production
TNS for HPUX: Version 11.2.0.3.0 - Production
[code]...
SELECT job_request_id,
CAST (COLLECT (USER_ID) AS SYS.OdcinumberList) user_ids
FROM mytable
GROUP BY job_request_id;
ORA-22814: attribute or element value is larger than specified in type
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Apr 21, 2011
I have requirement like we need to send records from one table to another table. for example if i have 4 records in Table A , first i need to send only 2 records to Table B then again rest 2 records to the Table B.
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Aug 10, 2011
I have a personname table which contains records of millions Person-names. My application has a requirment to return "any" 200 names that match the given Firstname and lastname entered by user.note the NOT actually "top-n", but "Any-N" , i.e. user wants "any" 200 names and NOT in any "specific order".
which is the best option to make most efficient search --
1) rownum < 201
2) row_num()
3) rank/denserank etc
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Jun 23, 2010
I am dealing with a table containing millions of records. I have table loans_list table and he data looks similar to this..
LOAN_IDSEQUENCE_NUMCOMPLETE_DATE
1237000
1237005
1237010
5237010 6/23/2010 10:07:02 AM
5237000 6/23/2010 10:07:02 AM
12237000
I am trying to select only those loan_id from this table which contain all these 3 sequence_num = 7000,7005,7010 and containing null compelete date. I tried different way to write the query but can't think of efficient way of writing this query yet.
Since this table contain million of records, i dont prefer to call this table more than once in a query. I am just trying to avoid the longer time delay for the execution of this query..
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Mar 16, 2012
We have a table which gets updated on a daily basis. We need to manage the records with the retention period of 30 days and move the remaining records to another table.
I understand that we can use "select insert" statement and then the "delete" statement to achieve this. Is there any sql to directly move the records to another table rather than inserting and then deleting?
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Jul 18, 2012
I want to insert 10 records from table a to table b. If i m using statement level trigger how many record insert?In row level trigger how many record inserted?
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Oct 3, 2013
how to display all the records in a table ,i am passing the table name as in param to the procedure/function suppose if i pass emp table name it will display 14 rec, if i pass dept it will display 4 records.
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