Querying an indexed database column. How?

Hi there,
I am pretty good at CF and okay at SQL.
Over the years I have been informed that when using the same column in a database multiple times to do look-ups....e.g. a primary key field....that it would be best to "index" this column to improve speed.
However, I'm not fully sure what or how to index a database column. I have a few questions:
Is it something to do in MySQL directly? Or can it be done programmatically with CF?
Does it really speed things up a lot?
How is new data entered affected? Does that new data get included into the index?
Does my cfquery syntax have to be any different than is normal?
Any help or advice would be great.
I'm using CF8 and MySQL5 (query browser tools etc)
Thanks,
Mikey.

Indexing is a database topic. As databases can be controled by SQL commands it would most likely be possible to do so inside of a <cfquery...> block, but I would only do that in rare circumstances.
Indexing a table will almost always speed up frequently used database columns. But when, how and why one would index a database column is a big topic on which entire papers, books and college classes have been developed around. I would start with some reading of you database documentation an then branch out onto the internet. You will find much written and should be able to educate yourself easily.

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Query a non-database column

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My second table and block is sr_tech_calendar.
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you achieve this by setting
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i have a block which has around 40 columns.the block is based on a table which has more than 20000 records.When i try 2 make query on a Database column in Enter-Query mode its not working.It fetching all the records instead of the respective records
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Thanks a lot for james and THomas and to all. The error is that i have missed the bracket for OR in my where condition ...Now im able to query all the columns.
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Reducing the Cost of the query by indexing.

Hello,
I have a query as under :
SELECT T1_WO.WO_ID, T1_RW_MSG.RMSG_FN_ID, T1_RW_MSG.RMSG_PROD_CD, T1_RW_MSG.RMSG_OPRN_CD, T1_WO.WO_ENTRY_DT, T1_RW_MSG.RMSG_OUR_REF_NUM, T1_WO.WO_CURR_QUEUE, T1_WO.WO_PRIORITY, T1_WO.WO_STATUS_CD, T1_RW_MSG.RMSG_TRANS_MD, T1_RW_MSG.RMSG_SRC_TYP, T1_WO.WO_TYP_FLG, T1_WO.WO_DEQUEUE_DT, T1_RW_MSG.RMSG_BTCH_ID, T1_RW_MSG.RMSG_SEQ_NUM_IN_BTCH, T1_WO.WO_FRM_QUEUE , T1_WO.WO_ORIG_ENTRY_DT,T1_WO.WO_SRC_TYP, T1_RW_MSG.RMSG_TILIS_PROC_LOC FROM T1_RW_MSG, T1_WO WHERE ( T1_RW_MSG.RMSG_FN_ID = T1_WO.RMSG_FN_ID ) AND ( T1_WO.WO_TYP_FLG = 'R') AND ( ( T1_WO.WO_ERR_FLG = 'F' ) AND ( T1_WO.WO_BSY_FLG = 'F' ) AND (T1_WO.WO_CURR_QUEUE IN ('MUMBAISAP','CCD19SAP') OR (T1_WO.WO_CURR_QUEUE IN ('') AND T1_WO.WO_FRM_ROLE_INSTANCE = 'CCD19SAP') OR (T1_WO.WO_CURR_QUEUE IN ('') AND T1_WO.WO_FRM_ROLE_INSTANCE <> 'CCD19SAP')) )
ORDER BY T1_WO.WO_PRIORITY DESC, T1_WO.WO_ENTRY_DT ASC;
This query has an ORDER BY clause wherein two columns
WO_PRIORITY DESC,WO_ENTRY_DT are used which are not indexed.
These columns are not indexed.Now I try to reduce the cost of these query by indexing these columns WO_PRIORITY DESC,WO_ENTRY_DT.Will this reduce the cost of the query.
Message was edited by:
UdayM

wrap your code in [code] and [/code] tags to preserve the formatting you will do to make it readable. You're unlikely to get much help if you make it hard to read.
an example of code formatting:
WITH t1_wo AS (SELECT 'a' wo_curr_queue from dual
               UNION
               SELECT to_char(null) from dual
               UNION
               SELECT '' from dual)
SELECT *
FROM t1_wo
WHERE t1_wo.wo_curr_queue IN ('')Interestingly, that returns no rows, which makes me suspect that the sections of your query that include t1_wo.wo_curr_queue IN ('') will never work.

How an INDEX of a Table got selected when a SELECT query hits the Database

Hi All,
How an Index got selected when a SELECT query hits the Database Table.
My SELECT query is as ahown below.
    SELECT ebeln ebelp matnr FROM ekpo
                   APPENDING TABLE i_ebeln
                   FOR ALL ENTRIES IN i_mara_01
                   WHERE werks = p_werks      AND
                         matnr = i_mara_01-matnr AND
                         bstyp EQ 'F'         AND
                         loekz IN (' ' , 'S') AND
                         elikz = ' '          AND
                         ebeln IN s_ebeln     AND
                         pstyp IN ('0' , '3') AND
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The fields in the INDEX of the Table EKPO should be in the same sequence as in the WHERE clasuse?
Regards,
Viji

Hi,
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Database Indexes
Indexes speed up data selection from the database. They consist of selected fields of a table, of which a copy is then made in sorted order. If you specify the index fields correctly in a condition in the WHERE or HAVING clause, the system only searches part of the index (index range scan).
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reference : help.sap.com
thanx.

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Help Me,
Balu.

Hi,
See the below Example.
select * from vbak up to 100 rows
into table t_vbak
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read table t_vbak index 1.
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ADF How to Download BLOB File from Database Column

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We have one blob Database Column in which we use for storing attachments(eg Image,.doc or.zip) . We are able to upload attachments.
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Thanks,
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Sorry, I don't get your question.
If you have a file name including the suffix like 'Test.file.doc' you can pass this file name as parameter to the method and get the MIME type back. I your sample it would be "application/msword"
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Dovik
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11GR2
=-----------------------------------
I am using below querry to compare two table that has same name, under two different users... But after making storage information false like below and if the storage information is different on column level than it create "Alter modify " statements for the column ... How can I make my query to compare only columns of two tables... not the storage information?
begin
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DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'SQLTERMINATOR',TRUE);
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I am using below querry to compare two table that has same name, under two different users... But after making storage information false like below and if the storage information is different on column level than it create "Alter modify " statements for the column ... How can I make my query to compare only columns of two tables... not the storage information?
If you want help you have to SHOW us what you are doing and how you are doing it; you can't just try to tell us in your own words.
We can't see your computer screen.

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Hi Frank,
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SQLExec Data Members
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Type
Read
Write
Description
c1 – c65535
numeric
yes
no
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c1.logical – c65535.logical
logical
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no
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c1.txt – c65535.txt
text
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I have tried using a "before region" calculation to set the item to NULL. I can see the value getting set in the debug after the row fetch has occurred, but when the item is displayed, it contains the value from the database, not my calculated valuie.
I also tried using an unsourced text field and then doing an after submit calculation to set the value of the database column item from there, but no luck that way either.
Also tried clearing the item cache, but I think that happens way too early.
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If you find this information useful, please mark the post "helpful" or "correct" so that others may benefit as well.*

How to query on non database item?

I am working on AP Invoice form. The Invoice Header block based on table ap_invoices_all, I have database items such as invoice_num, invoice_date, and invoice_amount. I also have some non databases item like supplier and supplier number. I added POST_QUERY:
declare
supplier varchar2(240);
supplier_number varchar2(30);
supplier_site varchar2(15);
begin
select aps.vendor_name, aps.segment1
into :invoice_header.supplier, :invoice_header.supplier_number
from ap_suppliers aps
where aps.vendor_id = :invoice_header.vendor_id;
Also in PRE-QUERY
declare
supplier varchar2(240);
supplier_number varchar2(30);
supplier_site varchar2(15);
invoice_num varchar2(50);
invoice_date date;
invoice_amount number;
begin
select aia.invoice_num, aia.invoice_date, aia.invoice_amount
into :invoice_header.invoice_num, :invoice_header.invoice_date, :invoice_header.invoice_amount
from ap_invoices_all aia
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Can anyone help? I really appreciate.

Hello,
Thanks for your reply. I think I need to clarify my problem
Your cursor has the same result as what I have in the post-query:
Select aps.vendor_name, aps.segment1
into :invoice_header.supplier, :invoice_header.supplier_number
from ap_suppliers aps
where aps.vendor_id = :invoice_header.vendor_id;
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Query in timesten taking more time than query in oracle database

Hi,
Can anyone please explain me why query in timesten taking more time
than query in oracle database.
I am mentioning in detail what are my settings and what have I done
step by step.........
1.This is the table I created in Oracle datababase
(Oracle Database 10g Enterprise Edition Release 10.2.0.1.0)...
CREATE TABLE student (
id NUMBER(9) primary keY ,
first_name VARCHAR2(10),
last_name VARCHAR2(10)
2.THIS IS THE ANONYMOUS BLOCK I USE TO
POPULATE THE STUDENT TABLE(TOTAL 2599999 ROWS)...
declare
firstname varchar2(12);
lastname varchar2(12);
catt number(9);
begin
for cntr in 1..2599999 loop
firstname:=(cntr+8)||'f';
lastname:=(cntr+2)||'l';
if cntr like '%9999' then
dbms_output.put_line(cntr);
end if;
insert into student values(cntr,firstname, lastname);
end loop;
end;
3. MY DSN IS SET THE FOLLWING WAY..
DATA STORE PATH- G:\dipesh3repo\db
LOG DIRECTORY- G:\dipesh3repo\log
PERM DATA SIZE-1000
TEMP DATA SIZE-1000
MY TIMESTEN VERSION-
C:\Documents and Settings\dipesh>ttversion
TimesTen Release 7.0.3.0.0 (32 bit NT) (tt70_32:17000) 2007-09-19T16:04:16Z
Instance admin: dipesh
Instance home directory: G:\TimestTen\TT70_32
Daemon home directory: G:\TimestTen\TT70_32\srv\info
THEN I CONNECT TO THE TIMESTEN DATABASE
C:\Documents and Settings\dipesh> ttisql
command>connect "dsn=dipesh3;oraclepwd=tiger";
4. THEN I START THE AGENT
call ttCacheUidPwdSet('SCOTT','TIGER');
Command> CALL ttCacheStart();
5.THEN I CREATE THE READ ONLY CACHE GROUP AND LOAD IT
create readonly cache group rc_student autorefresh
interval 5 seconds from student
(id int not null primary key, first_name varchar2(10), last_name varchar2(10));
load cache group rc_student commit every 100 rows;
6.NOW I CAN ACCESS THE TABLES FROM TIMESTEN AND PERFORM THE QUERY
I SET THE TIMING..
command>TIMING 1;
consider this query now..
Command> select * from student where first_name='2155666f';
< 2155658, 2155666f, 2155660l >
1 row found.
Execution time (SQLExecute + Fetch Loop) = 0.668822 seconds.
another query-
Command> SELECT * FROM STUDENTS WHERE FIRST_NAME='2340009f';
2206: Table SCOTT.STUDENTS not found
Execution time (SQLPrepare) = 0.074964 seconds.
The command failed.
Command> SELECT * FROM STUDENT where first_name='2093434f';
< 2093426, 2093434f, 2093428l >
1 row found.
Execution time (SQLExecute + Fetch Loop) = 0.585897 seconds.
Command>
7.NOW I PERFORM THE SIMILAR QUERIES FROM SQLPLUS...
SQL> SELECT * FROM STUDENT WHERE FIRST_NAME='1498671f';
ID FIRST_NAME LAST_NAME
1498663 1498671f 1498665l
Elapsed: 00:00:00.15
Can anyone please explain me why query in timesten taking more time
that query in oracle database.
Message was edited by: Dipesh Majumdar
user542575
Message was edited by:
user542575

TimesTen
Hardware: Windows Server 2003 R2 Enterprise x64; 8 x Dual-core AMD 8216 2.41GHz processors; 32 GB RAM
Version: 7.0.4.0.0 64 bit
Schema:
create usermanaged cache group factCache from
MV_US_DATAMART
ORDER_DATE               DATE,
IF_SYSTEM               VARCHAR2(32) NOT NULL,
GROUPING_ID                TT_BIGINT,
TIME_DIM_ID               TT_INTEGER NOT NULL,
BUSINESS_DIM_ID          TT_INTEGER NOT NULL,
ACCOUNT_DIM_ID               TT_INTEGER NOT NULL,
ORDERTYPE_DIM_ID          TT_INTEGER NOT NULL,
INSTR_DIM_ID               TT_INTEGER NOT NULL,
EXECUTION_DIM_ID          TT_INTEGER NOT NULL,
EXEC_EXCHANGE_DIM_ID TT_INTEGER NOT NULL,
NO_ORDERS               TT_BIGINT,
FILLED_QUANTITY          TT_BIGINT,
CNT_FILLED_QUANTITY          TT_BIGINT,
QUANTITY               TT_BIGINT,
CNT_QUANTITY               TT_BIGINT,
COMMISSION               BINARY_FLOAT,
CNT_COMMISSION               TT_BIGINT,
FILLS_NUMBER               TT_BIGINT,
CNT_FILLS_NUMBER          TT_BIGINT,
AGGRESSIVE_FILLS          TT_BIGINT,
CNT_AGGRESSIVE_FILLS          TT_BIGINT,
NOTIONAL               BINARY_FLOAT,
CNT_NOTIONAL               TT_BIGINT,
TOTAL_PRICE               BINARY_FLOAT,
CNT_TOTAL_PRICE          TT_BIGINT,
CANCELLED_ORDERS_COUNT          TT_BIGINT,
CNT_CANCELLED_ORDERS_COUNT     TT_BIGINT,
ROUTED_ORDERS_NO          TT_BIGINT,
CNT_ROUTED_ORDERS_NO          TT_BIGINT,
ROUTED_LIQUIDITY_QTY          TT_BIGINT,
CNT_ROUTED_LIQUIDITY_QTY     TT_BIGINT,
REMOVED_LIQUIDITY_QTY          TT_BIGINT,
CNT_REMOVED_LIQUIDITY_QTY     TT_BIGINT,
ADDED_LIQUIDITY_QTY          TT_BIGINT,
CNT_ADDED_LIQUIDITY_QTY     TT_BIGINT,
AGENT_CHARGES               BINARY_FLOAT,
CNT_AGENT_CHARGES          TT_BIGINT,
CLEARING_CHARGES          BINARY_FLOAT,
CNT_CLEARING_CHARGES          TT_BIGINT,
EXECUTION_CHARGES          BINARY_FLOAT,
CNT_EXECUTION_CHARGES          TT_BIGINT,
TRANSACTION_CHARGES          BINARY_FLOAT,
CNT_TRANSACTION_CHARGES     TT_BIGINT,
ORDER_MANAGEMENT          BINARY_FLOAT,
CNT_ORDER_MANAGEMENT          TT_BIGINT,
SETTLEMENT_CHARGES          BINARY_FLOAT,
CNT_SETTLEMENT_CHARGES          TT_BIGINT,
RECOVERED_AGENT          BINARY_FLOAT,
CNT_RECOVERED_AGENT          TT_BIGINT,
RECOVERED_CLEARING          BINARY_FLOAT,
CNT_RECOVERED_CLEARING          TT_BIGINT,
RECOVERED_EXECUTION          BINARY_FLOAT,
CNT_RECOVERED_EXECUTION     TT_BIGINT,
RECOVERED_TRANSACTION          BINARY_FLOAT,
CNT_RECOVERED_TRANSACTION     TT_BIGINT,
RECOVERED_ORD_MGT          BINARY_FLOAT,
CNT_RECOVERED_ORD_MGT          TT_BIGINT,
RECOVERED_SETTLEMENT          BINARY_FLOAT,
CNT_RECOVERED_SETTLEMENT     TT_BIGINT,
CLIENT_AGENT               BINARY_FLOAT,
CNT_CLIENT_AGENT          TT_BIGINT,
CLIENT_ORDER_MGT          BINARY_FLOAT,
CNT_CLIENT_ORDER_MGT          TT_BIGINT,
CLIENT_EXEC               BINARY_FLOAT,
CNT_CLIENT_EXEC          TT_BIGINT,
CLIENT_TRANS               BINARY_FLOAT,
CNT_CLIENT_TRANS          TT_BIGINT,
CLIENT_CLEARING          BINARY_FLOAT,
CNT_CLIENT_CLEARING          TT_BIGINT,
CLIENT_SETTLE               BINARY_FLOAT,
CNT_CLIENT_SETTLE          TT_BIGINT,
CHARGEABLE_TAXES          BINARY_FLOAT,
CNT_CHARGEABLE_TAXES          TT_BIGINT,
VENDOR_CHARGE               BINARY_FLOAT,
CNT_VENDOR_CHARGE          TT_BIGINT,
ROUTING_CHARGES          BINARY_FLOAT,
CNT_ROUTING_CHARGES          TT_BIGINT,
RECOVERED_ROUTING          BINARY_FLOAT,
CNT_RECOVERED_ROUTING          TT_BIGINT,
CLIENT_ROUTING               BINARY_FLOAT,
CNT_CLIENT_ROUTING          TT_BIGINT,
TICKET_CHARGES               BINARY_FLOAT,
CNT_TICKET_CHARGES          TT_BIGINT,
RECOVERED_TICKET_CHARGES     BINARY_FLOAT,
CNT_RECOVERED_TICKET_CHARGES     TT_BIGINT,
PRIMARY KEY(ORDER_DATE, TIME_DIM_ID, BUSINESS_DIM_ID, ACCOUNT_DIM_ID, ORDERTYPE_DIM_ID, INSTR_DIM_ID, EXECUTION_DIM_ID,EXEC_EXCHANGE_DIM_ID),
READONLY);
No of rows: 2228558
Config:
< CkptFrequency, 600 >
< CkptLogVolume, 0 >
< CkptRate, 0 >
< ConnectionCharacterSet, US7ASCII >
< ConnectionName, tt_us_dma >
< Connections, 64 >
< DataBaseCharacterSet, AL32UTF8 >
< DataStore, e:\andrew\datacache\usDMA >
< DurableCommits, 0 >
< GroupRestrict, <NULL> >
< LockLevel, 0 >
< LockWait, 10 >
< LogBuffSize, 65536 >
< LogDir, e:\andrew\datacache\ >
< LogFileSize, 64 >
< LogFlushMethod, 1 >
< LogPurge, 0 >
< Logging, 1 >
< MemoryLock, 0 >
< NLS_LENGTH_SEMANTICS, BYTE >
< NLS_NCHAR_CONV_EXCP, 0 >
< NLS_SORT, BINARY >
< OracleID, NYCATP1 >
< PassThrough, 0 >
< PermSize, 4000 >
< PermWarnThreshold, 90 >
< PrivateCommands, 0 >
< Preallocate, 0 >
< QueryThreshold, 0 >
< RACCallback, 0 >
< SQLQueryTimeout, 0 >
< TempSize, 514 >
< TempWarnThreshold, 90 >
< Temporary, 1 >
< TransparentLoad, 0 >
< TypeMode, 0 >
< UID, OS_OWNER >
ORACLE:
Hardware: Sunos 5.10; 24x1.8Ghz (unsure of type); 82 GB RAM
Version 10g Enterprise Edition Release 10.2.0.3.0 - 64bit Production
Schema:
CREATE MATERIALIZED VIEW OS_OWNER.MV_US_DATAMART
TABLESPACE TS_OS
PARTITION BY RANGE (ORDER_DATE)
PARTITION MV_US_DATAMART_MINVAL VALUES LESS THAN (TO_DATE(' 2007-11-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_07_NOV_D1 VALUES LESS THAN (TO_DATE(' 2007-11-11 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_07_NOV_D2 VALUES LESS THAN (TO_DATE(' 2007-11-21 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_07_NOV_D3 VALUES LESS THAN (TO_DATE(' 2007-12-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_07_DEC_D1 VALUES LESS THAN (TO_DATE(' 2007-12-11 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_07_DEC_D2 VALUES LESS THAN (TO_DATE(' 2007-12-21 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_07_DEC_D3 VALUES LESS THAN (TO_DATE(' 2008-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_08_JAN_D1 VALUES LESS THAN (TO_DATE(' 2008-01-11 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_08_JAN_D2 VALUES LESS THAN (TO_DATE(' 2008-01-21 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_08_JAN_D3 VALUES LESS THAN (TO_DATE(' 2008-02-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
LOGGING
NOCOMPRESS
TABLESPACE TS_OS,
PARTITION MV_US_DATAMART_MAXVAL VALUES LESS THAN (MAXVALUE)
LOGGING
NOCOMPRESS
TABLESPACE TS_OS
NOCACHE
NOCOMPRESS
NOPARALLEL
BUILD DEFERRED
USING INDEX
TABLESPACE TS_OS_INDEX
REFRESH FAST ON DEMAND
WITH PRIMARY KEY
ENABLE QUERY REWRITE
AS
SELECT order_date, if_system,
GROUPING_ID (order_date,
if_system,
business_dim_id,
time_dim_id,
account_dim_id,
ordertype_dim_id,
instr_dim_id,
execution_dim_id,
exec_exchange_dim_id
) GROUPING_ID,
/* ============ DIMENSIONS ============ */
time_dim_id, business_dim_id, account_dim_id, ordertype_dim_id,
instr_dim_id, execution_dim_id, exec_exchange_dim_id,
/* ============ MEASURES ============ */
-- o.FX_RATE /* FX_RATE */,
COUNT (*) no_orders,
-- SUM(NO_ORDERS) NO_ORDERS,
-- COUNT(NO_ORDERS) CNT_NO_ORDERS,
SUM (filled_quantity) filled_quantity,
COUNT (filled_quantity) cnt_filled_quantity, SUM (quantity) quantity,
COUNT (quantity) cnt_quantity, SUM (commission) commission,
COUNT (commission) cnt_commission, SUM (fills_number) fills_number,
COUNT (fills_number) cnt_fills_number,
SUM (aggressive_fills) aggressive_fills,
COUNT (aggressive_fills) cnt_aggressive_fills,
SUM (fx_rate * filled_quantity * average_price) notional,
COUNT (fx_rate * filled_quantity * average_price) cnt_notional,
SUM (fx_rate * fills_number * average_price) total_price,
COUNT (fx_rate * fills_number * average_price) cnt_total_price,
SUM (CASE
WHEN order_status = 'C'
THEN 1
ELSE 0
END) cancelled_orders_count,
COUNT (CASE
WHEN order_status = 'C'
THEN 1
ELSE 0
END
) cnt_cancelled_orders_count,
-- SUM(t.FX_RATE*t.NO_FILLS*t.AVG_PRICE) AVERAGE_PRICE,
-- SUM(FILLS_NUMBER*AVERAGE_PRICE) STAGING_AVERAGE_PRICE,
-- COUNT(FILLS_NUMBER*AVERAGE_PRICE) CNT_STAGING_AVERAGE_PRICE,
SUM (routed_orders_no) routed_orders_no,
COUNT (routed_orders_no) cnt_routed_orders_no,
SUM (routed_liquidity_qty) routed_liquidity_qty,
COUNT (routed_liquidity_qty) cnt_routed_liquidity_qty,
SUM (removed_liquidity_qty) removed_liquidity_qty,
COUNT (removed_liquidity_qty) cnt_removed_liquidity_qty,
SUM (added_liquidity_qty) added_liquidity_qty,
COUNT (added_liquidity_qty) cnt_added_liquidity_qty,
SUM (agent_charges) agent_charges,
COUNT (agent_charges) cnt_agent_charges,
SUM (clearing_charges) clearing_charges,
COUNT (clearing_charges) cnt_clearing_charges,
SUM (execution_charges) execution_charges,
COUNT (execution_charges) cnt_execution_charges,
SUM (transaction_charges) transaction_charges,
COUNT (transaction_charges) cnt_transaction_charges,
SUM (order_management) order_management,
COUNT (order_management) cnt_order_management,
SUM (settlement_charges) settlement_charges,
COUNT (settlement_charges) cnt_settlement_charges,
SUM (recovered_agent) recovered_agent,
COUNT (recovered_agent) cnt_recovered_agent,
SUM (recovered_clearing) recovered_clearing,
COUNT (recovered_clearing) cnt_recovered_clearing,
SUM (recovered_execution) recovered_execution,
COUNT (recovered_execution) cnt_recovered_execution,
SUM (recovered_transaction) recovered_transaction,
COUNT (recovered_transaction) cnt_recovered_transaction,
SUM (recovered_ord_mgt) recovered_ord_mgt,
COUNT (recovered_ord_mgt) cnt_recovered_ord_mgt,
SUM (recovered_settlement) recovered_settlement,
COUNT (recovered_settlement) cnt_recovered_settlement,
SUM (client_agent) client_agent,
COUNT (client_agent) cnt_client_agent,
SUM (client_order_mgt) client_order_mgt,
COUNT (client_order_mgt) cnt_client_order_mgt,
SUM (client_exec) client_exec, COUNT (client_exec) cnt_client_exec,
SUM (client_trans) client_trans,
COUNT (client_trans) cnt_client_trans,
SUM (client_clearing) client_clearing,
COUNT (client_clearing) cnt_client_clearing,
SUM (client_settle) client_settle,
COUNT (client_settle) cnt_client_settle,
SUM (chargeable_taxes) chargeable_taxes,
COUNT (chargeable_taxes) cnt_chargeable_taxes,
SUM (vendor_charge) vendor_charge,
COUNT (vendor_charge) cnt_vendor_charge,
SUM (routing_charges) routing_charges,
COUNT (routing_charges) cnt_routing_charges,
SUM (recovered_routing) recovered_routing,
COUNT (recovered_routing) cnt_recovered_routing,
SUM (client_routing) client_routing,
COUNT (client_routing) cnt_client_routing,
SUM (ticket_charges) ticket_charges,
COUNT (ticket_charges) cnt_ticket_charges,
SUM (recovered_ticket_charges) recovered_ticket_charges,
COUNT (recovered_ticket_charges) cnt_recovered_ticket_charges
FROM us_datamart_raw
GROUP BY order_date,
if_system,
business_dim_id,
time_dim_id,
account_dim_id,
ordertype_dim_id,
instr_dim_id,
execution_dim_id,
exec_exchange_dim_id;
-- Note: Index I_SNAP$_MV_US_DATAMART will be created automatically
-- by Oracle with the associated materialized view.
CREATE UNIQUE INDEX OS_OWNER.MV_US_DATAMART_UDX ON OS_OWNER.MV_US_DATAMART
(ORDER_DATE, TIME_DIM_ID, BUSINESS_DIM_ID, ACCOUNT_DIM_ID, ORDERTYPE_DIM_ID,
INSTR_DIM_ID, EXECUTION_DIM_ID, EXEC_EXCHANGE_DIM_ID)
NOLOGGING
NOPARALLEL
COMPRESS 7;
No of rows: 2228558
The query (taken Mondrian) I run against each of them is:
select sum("MV_US_DATAMART"."NOTIONAL") as "m0"
--, sum("MV_US_DATAMART"."FILLED_QUANTITY") as "m1"
--, sum("MV_US_DATAMART"."AGENT_CHARGES") as "m2"
--, sum("MV_US_DATAMART"."CLEARING_CHARGES") as "m3"
--, sum("MV_US_DATAMART"."EXECUTION_CHARGES") as "m4"
--, sum("MV_US_DATAMART"."TRANSACTION_CHARGES") as "m5"
--, sum("MV_US_DATAMART"."ROUTING_CHARGES") as "m6"
--, sum("MV_US_DATAMART"."ORDER_MANAGEMENT") as "m7"
--, sum("MV_US_DATAMART"."SETTLEMENT_CHARGES") as "m8"
--, sum("MV_US_DATAMART"."COMMISSION") as "m9"
--, sum("MV_US_DATAMART"."RECOVERED_AGENT") as "m10"
--, sum("MV_US_DATAMART"."RECOVERED_CLEARING") as "m11"
--,sum("MV_US_DATAMART"."RECOVERED_EXECUTION") as "m12"
--,sum("MV_US_DATAMART"."RECOVERED_TRANSACTION") as "m13"
--, sum("MV_US_DATAMART"."RECOVERED_ROUTING") as "m14"
--, sum("MV_US_DATAMART"."RECOVERED_ORD_MGT") as "m15"
--, sum("MV_US_DATAMART"."RECOVERED_SETTLEMENT") as "m16"
--, sum("MV_US_DATAMART"."RECOVERED_TICKET_CHARGES") as "m17"
--,sum("MV_US_DATAMART"."TICKET_CHARGES") as "m18"
--, sum("MV_US_DATAMART"."VENDOR_CHARGE") as "m19"
          from "OS_OWNER"."MV_US_DATAMART" "MV_US_DATAMART"
where I uncomment a column at a time and rerun. I improved the TimesTen results since my first post, by retyping the NUMBER columns to BINARY_FLOAT. The results I got were:
No Columns     ORACLE     TimesTen
1     1.05     0.94
2     1.07     1.47
3     2.04     1.8
4     2.06     2.08
5     2.09     2.4
6     3.01     2.67
7     4.02     3.06
8     4.03     3.37
9     4.04     3.62
10     4.06     4.02
11     4.08     4.31
12     4.09     4.61
13     5.01     4.76
14     5.02     5.06
15     5.04     5.25
16     5.05     5.48
17     5.08     5.84
18     6     6.21
19     6.02     6.34
20     6.04     6.75

Re: [iPlanet-JATO] Finding the database column length

This is the technique I would recommend. If you'd like to wrap this
mechanism up in the model class itself, create a subclass of QueryModelBase
that provides such a method and use that as the base class for all your
QueryModels.
Todd
----- Original Message -----
From: "Craig V. Conover" <craig.conover@S...>
Sent: Friday, October 19, 2001 12:15 PM
Subject: Re: [iPlanet-JATO] Finding the database column length
Chidu,
The result set that you get back is a JDBC ResultSet, not a "JATO" resultset. In ND, everything was wrapped in a "spider" data
structure, and therefore, difficult to get to the underlying datastructure, in many cases. In some case ND made it easier to do
certain things, and in other ways, made it more difficult or impossible(like seeing the SQL for an insert, update, delete).
>
Anyway, looking at the java.sql package, you can do this.
java.sql.ResultSet rs = <jata-model>.getResultSet();
java.sql.ResultSetMetaData rsMeta = rs.getMetaData();
// not sure if this is what you need, but it was the closest thing I couldfind
int colSize = rsMeta.getColumnDisplaySize(int column);
There are numerous other methods in the ResultSetMetaData interface thatmay be of use as well.
>
c
chidusv@y... wrote:
Hi,
How do I find out the length of a database column in a data model? In
NetDynamics, we can do dataobject.getDataField(<field
name>).getColumnLength(). Is it possible to achieve this in JATO
without using a resultset?
Thanks,
Chidu.
For more information about JATO, please visit
http://developer.iplanet.com/tech/appserver/framework/index.jsp
>>
>>
>>
>>
>
>
>
For more information about JATO, please visit
http://developer.iplanet.com/tech/appserver/framework/index.jsp
>
>
>
>
>
>
>

This is the technique I would recommend. If you'd like to wrap this
mechanism up in the model class itself, create a subclass of QueryModelBase
that provides such a method and use that as the base class for all your
QueryModels.
Todd
----- Original Message -----
From: "Craig V. Conover" <craig.conover@S...>
Sent: Friday, October 19, 2001 12:15 PM
Subject: Re: [iPlanet-JATO] Finding the database column length
Chidu,
The result set that you get back is a JDBC ResultSet, not a "JATO" resultset. In ND, everything was wrapped in a "spider" data
structure, and therefore, difficult to get to the underlying datastructure, in many cases. In some case ND made it easier to do
certain things, and in other ways, made it more difficult or impossible(like seeing the SQL for an insert, update, delete).
>
Anyway, looking at the java.sql package, you can do this.
java.sql.ResultSet rs = <jata-model>.getResultSet();
java.sql.ResultSetMetaData rsMeta = rs.getMetaData();
// not sure if this is what you need, but it was the closest thing I couldfind
int colSize = rsMeta.getColumnDisplaySize(int column);
There are numerous other methods in the ResultSetMetaData interface thatmay be of use as well.
>
c
chidusv@y... wrote:
Hi,
How do I find out the length of a database column in a data model? In
NetDynamics, we can do dataobject.getDataField(<field
name>).getColumnLength(). Is it possible to achieve this in JATO
without using a resultset?
Thanks,
Chidu.
For more information about JATO, please visit
http://developer.iplanet.com/tech/appserver/framework/index.jsp
>>
>>
>>
>>
>
>
>
For more information about JATO, please visit
http://developer.iplanet.com/tech/appserver/framework/index.jsp
>
>
>
>
>
>
>

Querying an indexed database column. How?

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