Make the relationship in between multiple table storage's tables will affect the performance
Hi,
i'm going to develop business application,the product ID needs to be generic one and it should automatically generate the unique id(like identity in sql ) but,it has to be generate in formatted way
for example the ID would be "cityCode+areaCode+uniqueNumber" . here, cityCode and areaCode are going to maintain in separate table. while generate the product id, going to find the cityCode table and AreaCode table the generate unique
number by merge all the respective information.
1) while doing all this will affect the performance Azure table storage performance and web application ?
2) making multiple relationship among multi-Table Storage will decrease the performance ?.
Hello,
When you say tables, are referring to Azure Storage Tables or Relational Databases?
Please note Windows Azure tables do not function in the same manner as tables in a relational database since they do not make use of relationships or have schemas.
And if you are referring to relational databases, the latency in performance would depend on the logic used to generate the unique ID.
You should be able to use the logic in an On-Prem SQL database and check for the latency.
Regards,
Malar.
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Changing the attibutes of a field in the table will affect existing data
Hi Experts,
If I want to changne the field attribute of particular field in the table, this table whoes field is changed is used in 15 more tables.Will that affect the data in production after changing the field attributes in all the 15 tables.
Thanks in Advance.
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IFFHi,
Definitely data will effect in all tables and also you have to modify all the programs which are used modified tables.
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Peranandam -
How can I make the performance of a webex webinar better ?
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import javax.swing.*;
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It's possible to make Hierarchical Tree from multiple tables ?
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if the answer associate with example that will be so kind of you :D
and thanks in advance.HI
use curose in when new form instance or procedure then u can got data more then one table like that
DECLARE
htree ITEM;
top_node FTREE.NODE;
new_node FTREE.NODE ;
child_node ftree.node ;
item_value VARCHAR2(30);
cursor prime_cur is select main_desc mgr_name, main_code dept
from pur_item_group_mst;
cursor child_cur(v_dept number) is select sub_desc,sub_code
from pur_item_group_dtl where main_code = v_dept ;
BEGIN
htree := Find_Item('tmp.tree4');
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new_node := Ftree.Add_Tree_Node(htree,
ftree.root_node,
Ftree.PARENT_OFFSET,
Ftree.LAST_CHILD,
Ftree.EXPANDED_NODE,
dummy.mgr_name,
'D:\ORYX_POLYBAGS\accept',
dummy.dept);
for child in child_cur(dummy.dept) loop
child_node := Ftree.Add_Tree_Node(htree,
new_node,
Ftree.PARENT_OFFSET,
Ftree.LAST_CHILD,
Ftree.EXPANDED_NODE,
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child.sub_code);
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END;
Rizwan Shafiq
www.rizwanshafiq.blogspot.com -
Efficient Way of Inserting records into multiple tables
Hello everyone,
Im creating an employee application using struts framework. One of the functions of the application is to create new employees. This will involve using one web form. Upon submitting this form, a record will be inserted into two separate tables. Im using a JavaBean (Not given here) between the JSP page and the Java file (Which is partly given below). Now this Java file does work (i.e. it does insert a record into two seperate tables).
My question is, is there a more efficient way of doing the insert into multiple tables (in terms of performance) rather than the way I've done it as shown below? Please note, I am using database pooling and MySQL db. I thought about Batch processing but was having problems writing the code for it below.
Any help would be appreciated.
Assad
package com.erp.ems.db;
import com.erp.ems.entity.Employee;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Collection;
import java.util.ArrayList;
public class EmployeeDAO {
private Connection con;
public EmployeeDAO(Connection con) {
this.con = con;
// METHOD FOR CREATING (INSERTING) A NEW EMPLOYEE
public void create(Employee employee) throws CreateException {
PreparedStatement psemployee = null;
PreparedStatement psscheduleresource = null;
String sqlemployee = "INSERT INTO employee (FIRSTNAME,SURNAME,GENDER) VALUES (?,?,?)";
String sqlscheduleresource = "INSERT INTO scheduleresource (ITBCRATE,SKILLS) VALUES (?,?)";
try {
if (con.isClosed()) {
throw new IllegalStateException("error.unexpected");
// Insert into employee table
psemployee = con.prepareStatement(sqlemployee);
psemployee.setString(1,employee.getFirstName());
psemployee.setString(2,employee.getSurname());
psemployee.setString(3,employee.getGender());
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psscheduleresource.setDouble(1,employee.getItbcRate());
psscheduleresource.setString(2,employee.getSkills());
if (psemployee.executeUpdate() != 1 && psscheduleresource.executeUpdate() != 1) {
throw new CreateException("error.create.employee");
} catch (SQLException e) {
e.printStackTrace();
throw new RuntimeException("error.unexpected");
} finally {
try {
if (psemployee != null && psscheduleresource != null)
psemployee.close();
psscheduleresource.close();
} catch (SQLException e) {
e.printStackTrace();
throw new RuntimeException("error.unexpected");
}Hi ,
U can use
set Auto Commit function here ..
let it be false first
and when u do with u r all queries ..
make it true
this function take boolean values
i e helful when u want record to be inserted in all or not at all..
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Problem with Master Detail between 3 tables or more
Hi to the community, I have the following problem.
I have 3 tables relationship : table Solicitud, ItemSolicitado,Cotizacion
Solicitud - ItemSolicitado ( 1 to * relationship )
ItemSolicitado - Cotizacion ( 1 to * relationship )
Solicitud - Cotizacion ( 1 to * relationship )
I have a Master Detail between Solicitud/ItemSolicitado , and it run correctly, I Insert,update,delete correctly ( with expression Groovy )
I want make a master/detail between ( Solicitud/ItemSolicitado ) / Cotizacion , because I need insert some data in Cotizacion table with some data from Solicitud/ItemSolicitado.
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How I can make a Master Detail between 3 tables or more ?? or, How I can do what I want ? some idea ??
Thanks.I resolved it !!, Only create a view link between the tables and I define in the Data Model Tab of my application module, as following, and it run !!
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User Datastore for multiple tables and columns!
Hi,
I hop so much, someone can help me.
I've made a user datastore to index multiple columns of multiple tables.
Now, the Documentation of Oracle explains the idexing of one table.
I have multiple tables, which have all, the columns descr and tagnr. I want to make a query sth like this:
select table1.column, table2.columnd... where contains(indexed field,'gas within descr',1)>0
is it possible to index 4 seperate tables, without having a collective key? I dont want to make a Concatenated Datastore.
I have wrote this code.
But it doesn't work. It's been compiled fine. But I don't get any result with my queries.
create or replace
procedure My_Proc_Wide
Must be in ctxsys schema.
In a full-scale example, this would be a wrapper
for a proc in the user schema.
rid in rowid,
tlob in out NOCOPY clob /* NOCOPY instructs Oracle to pass
this argument as fast as possible */
is
v_descr varchar2(80);
v_tagnr varchar2(30);
v_descr_name constant varchar2(20) := 'descr';
v_descr_start_tag constant varchar2(20) := '<' || v_descr_name || '>';
v_descr_end_tag constant varchar2(20) := '</' || v_descr_name || '>';
v_tagnr_name constant varchar2(20) := 'tagnr';
v_tagnr_start_tag constant varchar2(20) := '<' || v_tagnr_name || '>';
v_tagnr_end_tag constant varchar2(20) := '</' || v_tagnr_name || '>';
v_buffer varchar2(4000);
v_length integer;
begin
/* verify the env which called this */
if Dbms_Lob.Istemporary ( tlob ) <> 1
then
raise_application_error ( -20000,
'"IN OUT" tlob isn''t temporary' );
end if;
/* the real logic */
/* first tabel to be indexed */
select t1.tagnr, t1.descr
into v_tagnr, v_descr
from tweb.pdp_positions t1
where t1.rowid = rid;
v_buffer := v_tagnr_start_tag ||
v_tagnr ||
v_tagnr_end_tag ||
v_descr_start_tag ||
v_descr ||
v_descr_end_tag;
v_length := length ( v_buffer );
Dbms_Lob.WriteAppend(tlob, length(v_buffer) + 1, v_buffer || ' ');
/* second table to be indexed */
select t2.tagnr, t2.descr
into v_tagnr, v_descr
from tweb.pdp_schema_equ t2
where t2.rowid = rid;
v_buffer := v_tagnr_start_tag ||
v_tagnr ||
v_tagnr_end_tag ||
v_descr_start_tag ||
v_descr ||
v_descr_end_tag;
v_length := length ( v_buffer );
Dbms_Lob.WriteAppend(tlob, length(v_buffer) + 1, v_buffer || ' ');
/*third table to be indexed */
select t3.tagnr, t3.descr
into v_tagnr, v_descr
from tweb.pdp_equipment t3
where t3.rowid = rid;
v_buffer := v_tagnr_start_tag ||
v_tagnr ||
v_tagnr_end_tag ||
v_descr_start_tag ||
v_descr ||
v_descr_end_tag;
v_length := length ( v_buffer );
Dbms_Lob.WriteAppend(tlob, length(v_buffer) + 1, v_buffer || ' ');
/* fourth table to be indexed */
select t4.tagnr, t4.descr
into v_tagnr, v_descr
from tweb.pdp_Projcode t4
where t4.rowid = rid;
v_buffer := v_tagnr_start_tag ||
v_tagnr ||
v_tagnr_end_tag ||
v_descr_start_tag ||
v_descr ||
v_descr_end_tag;
v_length := length ( v_buffer );
Dbms_Lob.WriteAppend(tlob, length(v_buffer) + 1, v_buffer || ' ');
end My_Proc_Wide;
what have I to do, to make this work?
Any Help would be appriciated!!
Kind Regards,
ArsinehArsineh,
I realise that it has been quite some time since you posted this question but I thought I'd reply just in case you never did manage to get your user datastore working.
The reason your procedure will not work is simple. A user datastore procedure accepts a rowid input parameter. The rowid is the ID of the row that Oracle Text is currently trying to index. In the example you have given, you are attempting to use the supplied rowid as the primary key for multiple tables, this will simply never work as the rowid's across multiple tables will never correspond.
The best way to achieve your goal is to create the index on a master table which contains the common primary keys for each of your four tables e.g.
MASTER_TABLE
COL:COMMON_KEY (NUMBER(n))
COL:USER_INDEX_COLUMN (VARCHAR2(1))
If you create the user datastore index on the MASTER_TABLE.USER_UNDEX_COLUMN column your stored proc simply needs to read the correct row from the MASTER_TABLE (SELECT t.common_key into v_CommonKey FROM master_table t WHERE t.rowid = rid) and issue subsequent queries to extract the relavant data from the t1..t4 tables using the common key e.g.
SELECT t1.tagnr, t1.descr into v_tagnr, v_descr FROM t1 WHERE t1.[PRIMARY_KEY_FIELD] = v_CommonKey;
SELECT t2.tagnr, t2.descr into v_tagnr, v_descr FROM t2 WHERE t2.[PRIMARY_KEY_FIELD] = v_CommonKey;
and so on...
Hope this helps
Dean -
Select from multiple tables without join statement
Hey Gurus,
I would like to make a select from a multiple tables to check if there is any reference to my data. I would like to do it with some elegancy, but I don't know how.
Is in abap sql possible to do it only with the select statement?
Or I was also think about a solution that I should fill some data structure with all of the tables which I want to select from and then just loop that data structure and do the select seperately from all of the tables. I just need to check if it founds some results, so no need to store it. If this solution would be fine what data structure should I use?
Or can tell me what would be the best for this?
My code for select from one table, which I want to make for multiple tables:
SELECT SINGLE id_kniznice FROM zbr_t_autori INTO wa_id
WHERE id_kniznice EQ ls_extract-zview-id_kniznice.
IF sy-dbcnt > 0.
MESSAGE i000(zbr_msgc_lib).
ls_extract-flags-vim_mark = '*'.
MODIFY extract FROM ls_extract.
ENDIF.
Thank you for any posts.
Regards,
RobertAnd there we go again...
Read this topic:
For All Entries is NOT better than INNER JOIN in most cases
And this one:
inner join vs for all entries
Also that one:
Re: LOOP AT vs INNER JOIN
JOINs are really better than for all entries in most cases. Problem is people tend to ignore basic things like using pks or indexes while making them. -
Hi Everyone -
I am currently working with BO 6.5 SP4 as a report designer. I have a problem of spacing between multiple tables. Let me try to describe this issue as best I can.
Basically, the user community I have likes to use Excel and does not print their reports. As a result, most of the reports I have with tables are aligned side by side. In the case of a particular report, I have one table which has many calculations, and breaks based on the user selection. Directly to the right of this table I have another table which summarizes the totals for all sections ( breaks ). The problem I have is that as the users enter in more selections to the filter, the first table expands to the right as needed and often overlaps the second table. As a result, my report has overlapping tables.
The question I have, is there any way to setup tables side by side with an autospacing option? This way, I do not have to move the second table to the far right, but I can let the report handle the spacing between the tables.
Any help would be greatly appreciated.Highlight the table, right click, goto Format Table, then on the Appearance tab you can set the dynamic placement properties of the table relative to other tables.
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Referencing Records Across Multiple Tables in XML
Post Author: rltimms
CA Forum: Formula
Here is my problem.
I need to create a report that references data from 3 tables. These 3 tables are linked through the use of two other tables. The main tables I need to reference are entitled Station, Task, and Resource. The Station table is linked to Task through a TaskStationMapping Table. The Resource table is linked to Task through a TaskResourceMapping table.
Here is how I would like the output to look.
Station ID: S1 (L)
Processes
Required Resources
Operator
ID
Description
Net Time
Take Rate
Weighted Time
Work Zone
Models
ID
Quantity
1
6R-0000000003
Install the center support retaining ring onto compressor tool with the bevel facing up.
10.0000
0.3000
3.0000
E
2
Brush - 1" Paint Brush (for loctite)
1
1
6R-0000000004
Get gauge.
10.0000
0.3000
3.0000
E
2
1
6R-0000000011
For 2-W/D models, visually verify the output shaft bearings have been installed.
10.0000
1.0000
10.0000
E
The problem comes when I try to include the resource fields in my report. Aside from the 2 fields on the far right, everything else comes from the task table. I get this to display correctly for each station by creating a group using the ID from the Station table. I then use a group select formula that Checks the Station.ID against the StationID from the TaskStationMapping table. In order to get the fields from the task table to appear correctly I also have to include a formula that relates the ID from the Task Table and the TaskID from the TaskStationMapping table.
Without those selection formulas I end up with just a list of all tasks, even tasks which arent mapped to the station for which that particular group has been created.
Since the resources are mapped to the task, and not to the station, any type of selection statement I use to select from the resource table will affect my selections from the task table. For example, if I select more specifically for the resources, not all tasks are displayed, only those mapped to resources, so from the above example, only the first line of the report would be shown. I am new to using Crystal Reports, and I have no idea how to solve this problem. I dont know if I am missing something in the Grouping stage that would make it so I dont have to use the group and record select functions, or if there is some other way to solve this problem. Any help would be appreciated.Hi
I am assuming that this is an offline form.
First populate internal tables depending on the data you need on each page. Sort the table according to the PERNR.
You can read the internal tables using Javascript -
var varname1 = xfa.resolveNodes("xfa.record.ITAB.DATA[*]");
Add the fields as per the first name - Name, last name etc and populate these fields with the first record from the first internal table. Store the PERNR value in a separate variable (say pernr1).
Now you can querry the second internal table with this pernr, pick up the corresponding record and fill in the 2nd set of fields.
for( var i = 0; i < varname1.length ; i++)
if ( varname1.item(i).PERNR.value == pernr1 )
Hope this is a good starting point for you.
Thks, Liz -
Plsql coding for multiplication table
hai i need plsql coding for multiplication table can any one plzzzz.....
SELECT AVBELN AFKDAT AVTWEG ASPART AWAERK AKURRF AKUNAG AKNUMV
BPOSNR BFKIMG BNETWR BMATNR
DBEGRU ELABOR E~MATKL
INTO CORRESPONDING FIELDS OF TABLE ITAB
FROM VBRK AS A INNER JOIN VBRP AS B
ON AVBELN EQ BVBELN
INNER JOIN J_1IEXCHDR AS C
ON AVBELN EQ CRDOC
INNER JOIN KNVV AS D
ON DKUNNR EQ AKUNAG AND
DVKORG EQ AVKORG AND
DSPART EQ ASPART AND
D~BEGRU NE SPACE
INNER JOIN MARA AS E
ON EMATNR EQ BMATNR
WHERE A~FKDAT IN S_FKDAT AND
A~FKART EQ 'F2' AND
A~VTWEG IN S_VTWEG AND
A~SPART IN S_SPART AND
A~KUNAG IN S_KUNAG AND
A~FKSTO NE 'X' AND
B~WERKS IN S_WERKS AND
C~TRNTYP = 'DLFC' AND
E~LABOR IN S_LABOR AND
C~SRGRP IN ('01','02','03','31','32','33','41','42','43',
'81','82','83','95','55','45', '48') AND
B~MATNR IN S_MATNR AND
D~BEGRU IN S_BEGRU AND
E~MATKL IN S_MATKL.
but my suggestion not to use more than 2 table in inner join it will affect in performance use for all entries instead of join.
regards
shiba dutta -
Sample coding for multiple table join
Hi,
i need a sample coding for multiple table join. can anyone help me out.
regards
GokulSELECT AVBELN AFKDAT AVTWEG ASPART AWAERK AKURRF AKUNAG AKNUMV
BPOSNR BFKIMG BNETWR BMATNR
DBEGRU ELABOR E~MATKL
INTO CORRESPONDING FIELDS OF TABLE ITAB
FROM VBRK AS A INNER JOIN VBRP AS B
ON AVBELN EQ BVBELN
INNER JOIN J_1IEXCHDR AS C
ON AVBELN EQ CRDOC
INNER JOIN KNVV AS D
ON DKUNNR EQ AKUNAG AND
DVKORG EQ AVKORG AND
DSPART EQ ASPART AND
D~BEGRU NE SPACE
INNER JOIN MARA AS E
ON EMATNR EQ BMATNR
WHERE A~FKDAT IN S_FKDAT AND
A~FKART EQ 'F2' AND
A~VTWEG IN S_VTWEG AND
A~SPART IN S_SPART AND
A~KUNAG IN S_KUNAG AND
A~FKSTO NE 'X' AND
B~WERKS IN S_WERKS AND
C~TRNTYP = 'DLFC' AND
E~LABOR IN S_LABOR AND
C~SRGRP IN ('01','02','03','31','32','33','41','42','43',
'81','82','83','95','55','45', '48') AND
B~MATNR IN S_MATNR AND
D~BEGRU IN S_BEGRU AND
E~MATKL IN S_MATKL.
but my suggestion not to use more than 2 table in inner join it will affect in performance use for all entries instead of join.
regards
shiba dutta -
How to optimize the performance of crystal report?
Hi,
-I have to design a crystal report with best possible optimization. Optimization is main concern since report will run against 1-2 million data set. Though I am using parameter to fetch only the required data, required data can go till 1 million records.
-Based on the input passed by the user I have to group the data in report. And for each selected parameter the Detail section I am printing is different. For example:-If user selects store then detail section is different and if user select Host then detail section will be different.
-Report can be grouped by Time Field also. So to full fill this requirement I would have to create a sub report since other parameters are of string type and can be used in one formula to get parameter based grouping in report. However If I try to return Time filed from the same formula I get the errors the "Return type should be of String typeu201D. This forces me to create sub report for Time based grouping. If user selects Time Field to be grouped on, all the information in the main report gets suppressed and only the sub report gets printed.
If user select store, Host and User in parameter to be grouped on, sub report gets suppressed.
Now with the above mentioned points I tried to optimize the report in following way.
-Printing 1 million records in the report does not make sense; hence we wanted to show the summary of all the records in chart section but wanted to print just 5000 records in detailed section. Suppressing detailed section after 5000 records does not help much since suppressing just saves the time in printing and does not limit the number of records to be fetched from the DB.I have a subreport also so it fetches the data 2 times from the DB hence makes the performance of the report worse.
To solve this problem I used command object and put the charts in the subreport and detail in main report.
In main report's Command Object I limited the number to records to be fetched from the DB to 5000 using rownum<5000 but in subreport's Command Object I did not set any limit in the query but I am doing all my aggregation in SQL which means do summary operation in DB and get only summarized data from DB.
-To solve section problem I am using Template object (new feature added in CR 2008).In which I am returning the field based on the "Group By" parameter selected by user.
-For time Field I have created two sub reports, one for chart and other one for details in the same way described in point one(Printing 1 million recordsu2026u2026).
After implementing these points my crystal reports performance improved drastically. The report that was taking 24 minute to come back now taking only 2 minutes.
However I want my report to come back with one minute. It returns if I remove the sub reports for Time Based Grouping but I can not do so.
My questions here are,
-Can I stop Subreport from fetching the data from DB if itu2019s suppressed?
-I believe using Conditional Template Object is a better option rather than having multiple detailed sections to print the data for a selected Group. However any suggestion here to improve the performance will be appreciable.
-since crystal report does not provide any option to limit the number of records to be fetched from DB, I am forced to use command object with rownum in where condition.
Please let me know about other option(s) to get this done...If there is any.
I am using Crystal report 2008.And we have developed our application the use JRC to export crystal report in PDF.
Regards,
Amrita
Edited by: Amrita Singh on May 12, 2009 11:36 AM1) I have to design a crystal report with best possible optimization. Optimization is main concern since report will run against 1-2 million data set. Though I am using parameter to fetch only the required data, required data can go till 1 million records.
2) Based on the input passed by the user I have to group the data in report. And for each selected parameter the Detail section I am printing is different. For example:-If user selects store then detail section is different and if user select Host then detail section will be different.
3) Report can be grouped by Time Field also. So to full fill this requirement I would have to create a sub report since other parameters are of string type and can be used in one formula to get parameter based grouping in report. However If I try to return Time filed from the same formula I get the errors the "Return type should be of String typeu201D. This forces me to create sub report for Time based grouping. If user selects Time Field to be grouped on, all the information in the main report gets suppressed and only the sub report gets printed.
If user select store, Host and User in parameter to be grouped on, sub report gets suppressed.
Now with the above mentioned points I tried to optimize the report in following way.
1) Printing 1 million records in the report does not make sense; hence we wanted to show the summary of all the records in chart section but wanted to print just 5000 records in detailed section. Suppressing detailed section after 5000 records does not help much since suppressing just saves the time in printing and does not limit the number of records to be fetched from the DB.I have a subreport also so it fetches the data 2 times from the DB hence makes the performance of the report worse.
To solve this problem I used command object and put the charts in the subreport and detail in main report.
In main report's Command Object I limited the number to records to be fetched from the DB to 5000 using rownum<5000 but in subreport's Command Object I did not set any limit in the query but I am doing all my aggregation in SQL which means do summary operation in DB and get only summarized data from DB.
2)To solve section problem I am using Template object (new feature added in CR 2008).In which I am returning the field based on the "Group By" parameter selected by user.
Edited by: Amrita Singh on May 12, 2009 12:26 PM -
Insert values in multiple tables. One of the tables has complex primary key.
Hello, I am using Jdeveloper version 11.1.2.3.0
I have a table FORM_TYPE and another table Str. The Str table is used to translate strings from the table name which are read from another program from the database and used to generate forms..
The FORM_TYPE table has a relation to the STR table via formtype.title_str_id = str.str_id.
The STR table has a primary key that is depending on mf_language and str_id columns. I generated entity for the STR table but can't insert from the application module new values for some reason... It says the record invalidates its own entity..
I am trying to create a table that will be editable and will have the columns Description, Name, Str in English, Str in French etc...
Want to create a Form_Type and in the same time to insert new values for each language... But can't make the inserts of the new STR work..
Also the FormType.TITLE_STR_ID has many values null already in the database.
SELECT FormType.DESCRIPTION,
FormType.FORM_TYPE_ID,
FormType.NAME,
FormType.PAPER_REPORT_FORMAT,
FormType.PAPER_REPORT_NAME,
FormType.TITLE_STR_ID,
en.str en_str,
en.str_id,
en.object_name en_object_name,
fr.str,
fr.str_id,
fr.object_name,
du.str,
du.str_id,
du.object_name,
bg.str,
bg.str_id,
bg.object_name
FROM FORM_TYPE FormType,
(select str.str_id, str.mf_language_id, str.str, str.object_name
from mf_language ml, str
where ml.mf_language_id = str.mf_language_id
and ml.code ='en') en
, (select str.str_id, str.str, str.object_name
from mf_language ml, str
where ml.mf_language_id = str.mf_language_id
and ml.code ='fr') fr,
(select str.str_id, str.str, str.object_name
from mf_language ml, str
where ml.mf_language_id = str.mf_language_id
and ml.code ='du') du,
(select str.str_id, str.str, str.object_name
from mf_language ml, str
where ml.mf_language_id = str.mf_language_id
and ml.code ='bg') bg
WHERE
formtype.title_str_id = en.str_id and
formtype.title_str_id = fr.str_id and
formtype.title_str_id = du.str_id and
formtype.title_str_id = bg.str_idTried that I made view links and associations but still can't insert in both tables at once... Could be because the tables aren't having relationship between them or because the STR table has a (STR_ID, MF_LANGUAGE_ID) primary key...
-
"Failed to open the connection" problem related to multiple tables in the report?
Post Author: Gadow
CA Forum: Data Connectivity and SQL
System specifics:
Web environment using ASP.Net 2.0 (from Visual Studio 2005 Professional)
Crystal Reports 2008, v. 12.0.0.549, Full
We have set up the following method for displaying reports via our website:
User is sent to a report-specific page. The user is given some filtering options specific to the report that will be viewed. When the user has specified the data filters, the user clicks a button.
The page wraps up the report parameters -- selection query, formula values, report location, the name to be displayed, etc. -- into a class which gets put into the Session object.
The page redirects to DisplayReport.aspx. ALL reports redirect to this page.
DisplayReport.aspx retrieves the report parameters from Session. A ReportDocument object is created and loaded, then set with the data from the parameters class.
A ConnectionInfo object is created and set with the relevant log on credentials. All of the reports draw from the same database, so the connection information is hard-coded as the same for all reports. The page then iterates through all of the tables in the Database.Tables collection of the ReportDocument and calls ApplyLogOnInfo to each table using the ConnectionInfo object.
The page is rendered and the user gets the filtered report.
We currently have seven reports. Five reports work fine and display the correctly filtered data with no error messages. Two reports generate a Failed to open the connection error and do not display. I have verified that the queries being sent to DisplayReport.aspx are valid, and as I said the connection information itself is hard-coded in the one page that displays the reports and this is identical to all reports.
The five reports that do work all have a single data table, either an actual database table or a single view. The two reports that do not work all have multiple tables. As far as I can tell, this is the only difference between the sets; all seven reports are based on the same DSN and I have verified the database on all of the reports. All of the reports were written using Crystal Reports 8, and all of the reports display fine in a Windows app I wrote some years ago using Crystal Reports 8. Again, the only difference between those reports that do work and those that do not is the number of tables used in the report: one table or view in the reports that display, more than one table (tables only, none use views) in the reports that do not display.
As for the code I am using, below are the relevant methods. The function MakeConnectionInfo simply parses out the components of a standard SQL connection string into a ConnectionInfo object. DisplayedReport is the ID of the CrystalReportViewer on the page.Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs)
Dim o As Object = Session("ReportParams")
Dim ReportURL As String = ""
'Verify that there is a ReportParameters object
If o Is Nothing OrElse o.GetType IsNot GetType(ReportParameters) Then 'Redirect to the error page
Response.Redirect("/errors/MissingReport.aspx")
End If
ReportParams = CType(o, ReportParameters)
'Verify that the report exists
ReportURL = "/Reports/ReportFiles/" + ReportParams.ReportName
ReportPath = Server.MapPath(ReportURL)
If Not File.Exists(ReportPath) Then
Response.Redirect("/errors/MissingReport.aspx?Report=" + ReportParams.ReportTitle)
End If
InitializeReport()
End Sub
Protected Sub InitializeReport()
Dim RD As New ReportDocument
Dim CI As ConnectionInfo = MakeConnectionInfo(DB_Bonus)
Dim RPF As CrystalDecisions.Shared.ParameterField = Nothing
RD.Load(ReportPath)
If ReportParams.SelectString <> "" Then
Dim Adapt As New SqlDataAdapter(ReportParams.SelectString, DB_Bonus)
Dim DS As New Data.DataSet
Adapt.Fill(DS)
RD.SetDataSource(DS.Tables(0))
End If
For Each kvp As KeyValuePair(Of String, String) In ReportParams.Formulas
Dim FFD As FormulaFieldDefinition = Nothing
Try
FFD = RD.DataDefinition.FormulaFields(kvp.Key)
Catch ex As Exception
'Do nothing
End Try
If FFD IsNot Nothing Then
Select Case FFD.ValueType
Case FieldValueType.DateField, FieldValueType.DateTimeField
If IsDate(kvp.Value) Then
FFD.Text = String.Format("Date()", Convert.ToDateTime(kvp.Value).ToString("yyyy, MM, dd"))
Else
FFD.Text = "Date(1960, 01, 01)"
End If
Case FieldValueType.StringField
FFD.Text = String.Format("""""", kvp.Value)
Case Else
'For now, treat these as if they were strings. If things blow up here,
'we will need to add the appropriate formatting for the field type.
FFD.Text = String.Format("""""", kvp.Value)
End Select
End If
Next
For Each T As CrystalDecisions.CrystalReports.Engine.Table In RD.Database.Tables
Dim TLI As TableLogOnInfo = T.LogOnInfo
TLI.ConnectionInfo = CI
T.ApplyLogOnInfo(TLI)
Next
DisplayedReport.ReportSource = RD
End Sub
Does this approach not work with reports containing multiple tables, or is there something I'm missing? Any meaningful suggestions would be much appreciated.Dear Dixit,
Please refer to the Crystal report landing page to get the details
information about the support for crystal report issues.
Please use the following thread to post your questions related to
crystal report.
SAP Business One and Crystal Reports
Regards,
Rakesh Pati
SAP Business One Forum Team.
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