Rules of naming on several tables
Is there a quick way to the application of several tables-naming rules both in a relational model? The only way to do it, I found is to click with the right button on a table on the diagram canvas, choose Properties and click on the button 'Naming Rules. It is fine for a single table, but it's a bit tedious if there are many. If I select more than one table and apply the rules naming this method that the rules only get applied to the last table selected, not all the tables. While I can choose several tables in the browser tree there is no context menu right-click Allow me to do anything.I looked in the help of the naming rules and get 9 hits, none help. Nothing at Universal help either (aka Google).
Probably I'm missing something really obvious...
You can apply naming rules in the relational model all - it is in the context menu for the node of relational model in the browser - "apply naming key standards and constraints."
Philippe
Tags: Database
Similar Questions
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The rule of naming feature can be overridden in some cases?
As a Unique constraint , I have created includes 4 columns, enforcement of rules for naming in the table properties - even with the abbreviations for all tables and columns configured, it produces a constraint name that is 52 characters long (as shown in the picture at the bottom.)
Is there a way of or change how the 'models of naming rules' are used in this way (on duress with several columns or can maker data provide a way to allow the end user to create a specific name for a constraint like this, but does not allow the "naming rules" substitute for subsequent executions (IE. ' ") Thanks to a checkbox "Override")?
Yes, you can use ' tools > Administration object name ' to lock names and they cannot be changed
Philippe
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Creating a combined chronology based on several chronologies in several tables
Hello
I need to extract a timeline for a customer based on valid_from and valid_to dates in several tables.
For example: I have a table named customers with an id, a valid_from a valid_to date and a table named contracts with contrat_name and customer_id and valid_from valid_to:
CUSTOMERS:
ID | VALID_FROM | VALID_TO
1. 01.03.2010 | 01.01.4000
CONTRACTS:
CONTRACT_NAME | CUSTOMER_ID | VALID_FROM | VALID_TO
Contracted | 1. 01.03.2010 | 01.10.2010
ContractB | 1. 01.10.2010 | 01.01.4000
The following statement would now give me the correct chronology:
Select customer cus.id, con.contract_name, greatest(cus.valid_from,con.valid_from) least(cus.valid_to,con.valid_to) valid_to valid_from
customers cus
stupid contracts on cus.id = con.customer_id inner join;
CUSTOMER | CONTRACT | VALID_FROM | VALID_TO
1. Contracted | 01.03.2010 | 01.10.2010
1. ContractB | 01.10.2010 | 01.01.4000
It works, but I get a problem whenever I have a point from the time there is no contract for a client, but I would always like to have these periods in my calendar:
Suppose the following data and the same select statement:
CUSTOMERS:
ID | VALID_FROM | VALID_TO
1. 01.03.2010 | 01.01.4000
CONTRACTS:
CONTRACT_NAME | CUSTOMER_ID | VALID_FROM | VALID_TO
Contracted | 1. 01.05.2010 | 01.10.2010
ContractB | 1. 01.12.2010 | 01.03.2011
What I would now get would be:
CUSTOMER | CONTRACT | VALID_FROM | VALID_TO
1. Contracted | 01.05.2010 | 01.10.2010
1. ContractB | 01.12.2010 | 01.03.2011
But what I get is the following:
CUSTOMER | CONTRACT | VALID_FROM | VALID_TO
1. null | 01.03.2010 | 01.05.2010
1. Contracted | 01.05.2010 | 01.10.2010
1. null | 01.10.2010 | 01.12.2010
1. ContractB | 01.12.2010 | 01.03.2011
1. null | 01.03.2011 | 01.01.4000
What I won't is generate a result with contract = null any time, there is no contract because I actually want to join the chronology of several different tables into one and it would be very complicated to assume things based on what data can or can not be found in a specific table.
Thanks for any help or ideas,
Kind regards
ThomasHi, Thomas,.
Whenever you have a problem, after the sample data in a form that people can use to recreate the problem and test their ideas. CREATE TABLE and INSERT statements are great.
For example:CREATE TABLE customers ( customer_id NUMBER (6) PRIMARY KEY , valid_from DATE NOT NULL , valid_to DATE NOT NULL ); INSERT INTO customers (customer_id, valid_from, valid_to) VALUES (1, DATE '2010-03-01', DATE '4000-01-01'); INSERT INTO customers (customer_id, valid_from, valid_to) VALUES (2, DATE '2010-03-01', DATE '4000-01-01'); CREATE TABLE contracts ( contract_name VARCHAR2 (15) NOT NULL , customer_id NUMBER (6) , valid_from DATE NOT NULL , valid_to DATE NOT NULL ); INSERT INTO contracts (contract_name, customer_id, valid_from, valid_to) VALUES ('Contract 1a', 1, DATE '2010-03-01', DATE '2010-10-01'); INSERT INTO contracts (contract_name, customer_id, valid_from, valid_to) VALUES ('Contract 1b', 1, DATE '2010-10-01', DATE '4000-01-01'); INSERT INTO contracts (contract_name, customer_id, valid_from, valid_to) VALUES ('Contract 2a', 2, DATE '2010-05-01', DATE '2010-10-01'); INSERT INTO contracts (contract_name, customer_id, valid_from, valid_to) VALUES ('Contract 2b', 2, DATE '2010-12-01', DATE '2011-03-01');
If a customer contracts of n, then you might need as much as 2n + lines 1 output for this client:
(a) 1 row showing the period, not from the date of customers both valid_from 1st contract begins
(b) n lines indicating the periods under contracts
(c) n lines indicating the period right after each contract, until the following starts (or valid_to of the client, if there is no next contract)
However, you will have lines for periods not contacted ((a) or (c)) if their mandate is 0 days.This sounds like a job for the UNION. Make a UNION 3 lanes in a subquery to generate (a), (b), and (c), and then put a WHERE clause on the combined, results to filter the lines not length 0.
In the query subsidiary UNION, (a) can be done with a query GROUP BY, and (c) can be done using the analytical function of LEAD.WITH union_data AS ( SELECT ua.customer_id , NULL AS contract_name , MIN (ua.valid_from) AS valid_from , MIN (oa.valid_from) AS valid_to FROM customers ua JOIN contracts oa ON ua.customer_id = oa.customer_id GROUP BY ua.customer_id -- UNION ALL -- SELECT customer_id , contract_name , valid_from , valid_to FROM contracts -- UNION ALL -- SELECT uc.customer_id , NULL AS contract_name , oc.valid_to AS valid_from , LEAD ( oc.valid_from , 1 , uc.valid_to ) OVER ( PARTITION BY uc.customer_id ORDER BY oc.valid_from ) AS valid_to FROM customers uc JOIN contracts oc ON uc.customer_id = oc.customer_id ) SELECT * FROM union_data WHERE contract_name IS NOT NULL OR valid_from < valid_to ORDER BY customer_id , valid_from ;
Output:
CUSTOMER_ID CONTRACT_NAME VALID_FROM VALID_TO ----------- --------------- ---------- ---------- 1 Contract 1a 01.03.2010 01.10.2010 1 Contract 1b 01.10.2010 01.01.4000 2 01.03.2010 01.05.2010 2 Contract 2a 01.05.2010 01.10.2010 2 01.10.2010 01.12.2010 2 Contract 2b 01.12.2010 01.03.2011 2 01.03.2011 01.01.4000
Published by: Frank Kulash, April 20, 2011 06:51
Examples added -
create the view of several tables of days
Hello
I'll have existing oracle db with the daily stat data, tables strangely named data_mon, data_tue, data_wed... For my batch that I intend to use the view with multiple day data, let say for the last 5 days.
Do not know how better to implement my sql with these suffixes _mon statement to make it more or less dynamic.
I create also ever seen from several tables, then, probably, that I can do something that will add daily updated data and remove data from 5 days?
You will appreciate comments on the details and the whole concept. I have prev sql server experience.
Thank you
Tuser12943718 wrote:
Hello
I'll have existing oracle db with the daily stat data, tables strangely named data_mon, data_tue, data_wed... For my batch that I intend to use the view with multiple day data, let say for the last 5 days.
Do not know how better to implement my sql with these suffixes _mon statement to make it more or less dynamic.
I create also ever seen from several tables, then, probably, that I can do something that will add daily updated data and remove data from 5 days?You will appreciate comments on the details and the whole concept. I have prev sql server experience.
Thank you
TChange the data model if you have 1 table for a day.
You have just a DATA table and a column to indicate the day of the application.
Then you don't need a view, do not need anything dynamic, do not need to break your head against a wall for a simple query... etc.
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'Trigger' rules the naming could be added?
I looked around, but couldn't find a way to do of this...
Would it not possible to request an improvement to allow to the naming conventions for triggers and integrate this into the object name of the Administration?
I do not know where triggers receive their default name, but in this case, it is obviously related to the column affect the trigger.
For example, adding "rules of naming" here under relational templates (or even elsewhere) would use a model of the 'name' trigger and add a suffix (or prefix) related to the trigger type (which is our standard).
This trigger could be renamed USPS_ACT_LOG_USPS_ACTLOG_BI or simply USPS_ACT_LOG_BI (for a Before Iinsert trigger).
Other examples would be TABLENAME_AUD (for After Update or Delete) and so on.
Just a thought see naming rules are an important component with this product.
I do not know where triggers receive their default name, but in this case, it is obviously related to the column affect the trigger.
A model for the name of the trigger generated for a column to auto-increment can be provided on the Data Modeler > model > physical preferences page.
If this is not supplied, the default name is
_
_TRG. (The _TRG or more are removed if necessary to keep the name in the 30 character limit.) David
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I need to remove the data from several tables with unique FORALL. It seems that FORALL does not support. Please let me know the alternatives to achieve this goal.
DB version: 11 GR 2
Write switchis for all instructions, one for each deletion. There is no reason why it should not work.
Compare:
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Hello
We are working on a data warehousing project and wonder how do to join several tables that each are versioned separately (type SCD 2 with a valid and valid to date).
Because for example, we get our client from a single source of information (id customer, name, etc.) and the information on the rate of customer from another source. The sources are different, we have the separate tables for them and each of them gets versioned independently.
Here's my customer table (with its own valid and valuable to the columns).
ID Name of the customer Valid from Valid until the 1 CitiBank 1 JANUARY 14 JANUARY 1, 15 1 New CitiBank 2 JANUARY 15 FEBRUARY 1, 15 1 Latest CitiBank 2 FEBRUARY 15 APRIL 1, 15 And similarly the Client side ID and rating information.
ID Note Valid from Valid until the 1 Platinum 1 JANUARY 14 FEBRUARY 1, 14 1 Premium FEBRUARY 1, 14 1ST MARCH 15 I want to merge the two tables above and present information at a glance. I have some difficulty to determine validates the valid columns.
ID Name of the customer Note Valid from (Calculated) Valid until the (calculated) 1 CitiBank Platinum 1 JANUARY 14 FEBRUARY 1, 14 1 CitiBank Premium FEBRUARY 1, 14 JANUARY 1, 15 1 New CitiBank Premium 2 JANUARY 15 FEBRUARY 1, 15 1 Latest CitiBank Premium 2 FEBRUARY 15 1ST MARCH 15 And it's the query I used to get the above result:
SELECT client. id ,
customer . name ,
CRM . level ,
Greatest (client. vld_fm , crm. vld_fm ),
Least (client. vld_to , crm. vld_to )
DE client client,
client_rating crm
OÙ client. id = crm. id
AND ( client. vld_fm <= crm. vld_fm
AND client. vld_fm <= crm. vld_to
AND client. vld_fm >= crm. vld_fm
AND client. vld_fm >= crm. vld_to )
OR ( client. vld_fm BETWEEN crm. vld_fm AND crm. vld_to )
OR ( client. vld_to BETWEEN crm. vld_fm AND crm. vld_to );
The problem is we have several data sources (and each with its own versions) and joins become so very very complex. Is there a better way to write the query?Or maybe a better way to design our tables?
Thanks for your help.
Anand
Hello
you only need ranges that overlap to join.
Re: How do to sql query in a loop
Is a simpler way to test if the x_start to x_stop range comes into conflict with the range of y_start to y_stop
WHERE x_start <= y_stop AND y_start <= x_stop
In other words, two overlapping if and only if everyone will start before the other ends one. If this is not obvious (and it was certainly not clear to me when I heard it), then look at it this way: two ranges are not overlapping if and only if one of them starts after the end of the other.
Concerning
Marcus
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outer join when there are several tables are involved
Could not put up the question correctly to the last channel, my problem is with the join when there are several tables are involved, this is just one example of the task that I have to carry.
Tab1 aura model id retailer_id information for all the weeks (from the first Monday) of the month of JUNE with cost and Helen
Tab1
model_id
retailer_id
sell_date
cost
Helene
1
12
June 3, 13
100
40
1
12
June 10, 13
200
20
1
12
17 June 13
300
20
1
12
24 June 13
400
20
2
12
June 3, 13
300
10
2
12
June 10, 13
200
20
2
12
17 June 13
300
20
2
12
24 June 13
400
20
Tab2:
each retailer belongs to a dealer, under the table has the same information
retailer_id
Dealer_id
12
100
13
100
14
101
15
101
16
101
Tab 3
There is a third layer where each dealership is having a garage band
Dealer_id
Dealer_group
100
1001
101
1001
102
2001
103
2001
104
3001
105
3001
Tab4:
Of this table for each model and dealer discount information for the month of June (every week)
model_id
Dealer_group
discount_date
discount
1
1001
June 3, 13
10
1
1001
June 10, 13
20
1
1001
17 June 13
10
1
1001
24 June 13
30
2
1001
June 3, 13
10
2
1001
June 10, 13
20
2
1001
17 June 13
10
2
1001
24 June 13
30
3
2001
June 3, 13
10
3
2001
June 10, 13
20
3
2001
17 June 13
10
3
2001
24 June 13
30
Master_info:
It's the main table which is the master table for model /retailer information
Model_id
retailer_id
1
12
2
12
3
12
4
12
1
13
2
13
Output
model_id
retailer_id
sell_date
cost
Helene
Final (cost-helene-discount)
1
12
June 3, 13
100
40
50
1
12
June 10, 13
200
20
160
1
12
17 June 13
300
20
270
1
12
24 June 13
400
20
350
2
12
June 3, 13
300
10
280
2
12
June 10, 13
200
20
160
2
12
17 June 13
300
20
270
2
12
24 June 13
400
20
350
3
12
June 3, 13
0
0
0
3
12
June 10, 13
0
0
0
3
12
17 June 13
0
0
0
3
12
24 June 13
0
0
0
4
12
June 3, 13
0
0
0
4
12
June 10, 13
0
0
0
4
12
17 June 13
0
0
0
4
12
24 June 13
0
0
0
1
13
June 3, 13
0
0
0
1
13
June 10, 13
0
0
0
1
13
17 June 13
0
0
0
1
13
24 June 13
0
0
0
2
13
June 3, 13
0
0
0
2
13
June 10, 13
0
0
0
2
13
17 June 13
0
0
0
1
13
24 June 13
0
0
0
For highted above records (model_id / retailer_id combination) there is no record in tab1 but they have entered in master_info then the recordings should come for all model_id/retailer_id with all the 0 values
Hello
Thanks for posting the sample data.
It is unclear what dates you want to include in the output. The following query shows how you can generate every Monday in a given range. If you only want to include the dates that are actually present in tabl1 and/or tab4, you can simplify this a bit.
WITH date_range AS
(
SELECT TRUNC (TO_DATE (' 3 June 2013', 'DD-Mon-YYYY'))
, 'IW '.
) AS first_monday
, TRUNC (TO_DATE (24 June 2013 ', 'DD-Mon-YYYY') + 6)
, 'IW '.
) AS last_monday
OF the double
)
all_mondays AS
(
First_monday SELECT + (7 * (LEVEL - 1)) AS sell_date
OF date_range
CONNECT BY LEVEL<= 1="" +="" (="" (last_monday="" -="">=>
/ 7
)
)
SELECT mi.model_id
mi.retailer_id
am.sell_date
, Cost of NVL (t1.cost, 0) AS
, NVL (t1.rebat, 0) IN the refund
, NVL (t1.cost, 0)
-(NVL (t1.rebat, 0))
+ NVL (t4.discount, 0)
) AS final
E master_info
CROSS JOIN all_mondays am
LEFT OUTER JOIN tab1 t1 ON t1.model_id = mi.model_id
AND t1.retailer_id = mi.retailer_id
AND t1.sell_date = am.sell_date
LEFT OUTER JOIN tab2 t2 ON t2.retailer_id = mi.retailer_id
LEFT OUTER JOIN tab 3 t3 ON t3.dealer_id = t2.dealer_id
LEFT OUTER JOIN tab4 t4 ON t4.model_id = t1.model_id
AND t4.dealer_group = t3.dealer_group
AND t4.discount_date = t1.sell_date
ORDER BY mi.retailer_id
mi.model_id
am.sell_date
;
The results are not exactly what said you you wanted. I suspect it's because of typos in that you posted.
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Who knows the rule of naming of webAccess URL generated by CR?
I have some time access to my virtual machines via webAccess, bookmark the URL of the often used VMs sepecify (Summary tab, click on generate Virtual Machine shortcut.).
but one day I found I can't access VM via a URL bookmarked, because it had been modified.
I didn't know what a change from the VC or ESX will be the result of the URL changes.
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I have a table emp table(empno,ename,deptno) and dept (deptno, dname)
I have a third emp_details (empno, ename, deptno, dname) of table
I have a procedure that returns the empdetails
I have a query in th eabove procedure, select * from emp_details; that returns all the details.
I want to write a trigger of such that,.
If I insert or update a row in the emp and dept table and then he should get inserted/updated in the table of emp_details also.
I am able to write triggers ona single table. I can't get the rows inserted or updated when it comes to multiple tables.
Data:
create table emp
(key primary empno number,)
Ename varchar2 (20).
DEPTNO number
)
create table dept
(key primary number depno,)
DNAME varchar2 (20)
)
Insert into dept values(10,'hyderabad');
Insert into dept values(20,'bangalore');
Insert into emp values(1,'A',10);
Insert into emp values(2,'B',20);
CREATE TABLE EMP_DETAILS
AS
SELECT E.ENAME, E.EMPNO, E.DEPTNO, D.DNAME
Of
EMP E, DEPT. D
WHERE E.DEPTNO = D.DEPTNO;
CREATE OR REPLACE PROCEDURE PROC_EMP_DETAILS (P_EMPNO EMP. EMPNO % TYPE OUT, P_ENAME EMP. ENAME OUT TYPE, P_DEPTNO EMP %. DEPTNO % TYPE OUT, P_DNAME MIN. DNAME % OUT TYPE)
AS
/ * EXAMPLE OF CODE * /.
BEGIN
SELECT * FROM EMP_DETAILS;
END;
/
I tried like this
CREATE OR REPLACE TRIGGER TRIG_EMP_DETAILS
AFTER INSERT OR UPDATE ON EMP
FOR EACH LINE
REFERENCING OLD AS OLD AGAIN AS NEW
BEGIN
INSERT INTO EMP_DETAILS VALUES(:NEW.) EMPNO,: NEW. ENAME,: NEW. DEPTNO,?)
???? -As a column, we get dept table how to represent that?
Could you please guide me in this regard?
Thanks in advance
KVBTrigger on a several tables
I think that you don't need triggers on several tables: one is enough:
CREATE OR REPLACE TRIGGER trig_emp_details AFTER INSERT OR UPDATE ON emp FOR EACH ROW BEGIN INSERT INTO emp_details SELECT :new.empno, :new.ename, :new.deptno, dname FROM dept WHERE deptno = :new.deptno; END;
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Table directory
This part of the data block contains information about the table with lines in this block.
11.2 Concepts manual, the definition has been changed:
Table directory
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Of http://docs.oracle.com/cd/E14072_01/server.112/e10713/tablecls.htm#i25478
A cluster of the table is a group of tables that share common columns and store related data in the same blocks. When the tables are grouped, a single data block can contain several tables lines
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Re: http://forums.Adobe.com/message/5608816#5608816
If create two mor several tables of contents of a book, one that becomes the navigation exported ePub toc?
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Hello! Is it possible to MERGE INTO several tables under certain conditions? It's that if the condition is satisfied the data is intended to a single table, if not the other.
You can not. Only inserts can be multi-table.
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Performance in the treatment of the based on a game, several tables from target
Welcome.
I have question about a treatment based on a game, when mapping have several tables in the target. I noticed that OWB generate SQL code that usually build a query for each table in the target insertion. Suggest that each table has results from different stages of the treatment, so multi table insert cannot be used. Looking for generated code PL/SQL, I feel that each insert query managed independently and so each make analyses of source table and joins on its own.
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Best regards
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Thus, it is usually, if oracle performs scans of tables 2 and joined in example 2) and example 2) take twice longer than example 1)?
Yes, you are right
Or fact Oracle is so smart that it can cache the result of entering the first query and use it again in the second query?
Nor the database Oracle or OWB don't is not to intermediate capabilities query result caching.
While the Oracle database feature "result cache queries", but it must match exactly to SQL source and it store only the final query result...Kind regards
Oleg -
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I'm new to APEX so any help would be greatly appreciated!UPDATE:
I received an email from support of APEX team:
«The answer is simple, it's you will need manually code processes query (and DML) If you want to maintain multiple tables on a page (there is a limit of a table when you use the integrated process).»
For this I suggest that you remove the process generated by the wizards and create processes of PL/SQL with insert, update, delete statements as needed. "This encoding is not difficult but takes much longer when you can use the integrated process.I've been playing with code PL/SQL and the final result is the following:
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VALUES)
: P2_Item_Field1,.
(: P2_Item_Field2);
INSERT INTO table2
VALUES)
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(: P2_Item_Field2);
end;I used this code in a PL/SQL custom in the treatment process > section to the Page processing and it seems to work fine now. The only downside to this method is that if the name of a Page element is changed the code will also have to be changed. Except that I had no problem.
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