Consistant Scrolling position between cursor keys and mouse - how to do it??

When I read with Adobe Reader, I often use the mouse on my laptop and scroll the pages down with the scrollbar and then become engrossed in reading the article.
Being engrossed, however, I also sometimes press the cursor down key, with the expectation that it will scroll the page down from the current position I am reading from.
Unfortunately it jumps to whereever it was 50 or so pages before, or to the start and I have to mess around trying to find my place.
It's deeply, deeply irritating and slows down my reading significantly.
I have read all the Adobe reader help and settings, but cannot find anywhere I can change this behavour. I
Anyone else affected by this and if so how did you overcome it?

I shoud be clearer and say that it jumps to wherever the cursor was last placed by the cursor keys.
Can't believe its just me who has this problem....

Similar Messages

Difference between primary key and primary index

Dear All,
Hi... .Could you pls tell me the difference between primary key and primary index.
Thanks...

Hi,
Primary Key : It is one which makes an entry of the field unique.No two distinct rows in a table can have the same value (or combination of values) in those columns.
Eg: first entry is 111, if you again enter value 111 , it doesnot allow 111 again. similarly for the strings or characters or numc etc. Remember that for char or numc or string 'NAME' is not equal to 'name'.
Primary Index: this is related to the performance .A database index is a data structure that improves the speed of operations in a table. Indices can be created using one or more columns, providing the basis for both rapid random lookups and efficient ordering of access to records. The disk space required to store the index is typically less than the storage of the table (since indices usually contain only the key-fields according to which the table is to be arranged, and excludes all the other details in the table), yielding the possibility to store indices into memory from tables that would not fit into it. In a relational database an index is a copy of part of a table. Some databases extend the power of indexing by allowing indices to be created on functions or expressions. For example, an index could be created on upper(last_name), which would only store the uppercase versions of the last_name field in the index.
In a database , we may have a large number of records. At the time of retrieving data from the database based on a condition , it is a burden to the db server. so whenever we create a primary key , a primary index is automatically created by the system.
If you want to maintain indices on other fields which are frequently used in where condition then you can create secondary indices.
Reward points if helpful.
Thanks,
Sirisha..

Difference between PRIMARY KEY and UNIQUE KEY with NOT NULL

What is the difference between PRIMARY KEY and UNIQUE KEY with NOT NULL constraint?
Message was edited by:
Nilesh Hole

Answer for the master!!!
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:8743855576462
Thanks,
Karthick

Difference between Unique key and Primary key(other than normal difference)

Hello,
1).Can any one tell me any other difference between Unique key and Primary key other than it having NULLs.
2). What is the difference the words 'DISTINCT' and 'UNIQUE' in a sql query.
Thanks in advance.

Hi
If you don't believe me than see the documentation in
OTN.
Ott Karesz
http://www.trendo-kft.hu
SQL> create table scott.tbl_clob
2 (sss CLOB)
3 /
Tabelle wurde angelegt.
SQL> insert into scott.tbl_clob values('wrwrwrw')
2 /
1 Zeile wurde erstellt.
SQL> insert into scott.tbl_clob values('wrwrwrw')
2 /
1 Zeile wurde erstellt.
SQL> select distinct sss from scott.tbl_clob
2 /
select distinct sss from scott.tbl_clob
FEHLER in Zeile 1:
ORA-00932: nicht übereinstimmende Datentypen
SQL> select unique sss from scott.tbl_clob
2 /
select unique sss from scott.tbl_clob
FEHLER in Zeile 1:
ORA-00932: nicht übereinstimmende Datentypen
SQL> select distinct to_char(sss) from scott.tbl_clob
2 /
TO_CHAR(SSS)
wrwrwrw
SQL> select unique to_char(sss) from scott.tbl_clob
2 /
TO_CHAR(SSS)
wrwrwrw
SQL>

Capture key and mouse event

Hi,
What I want to do is..
when users click on a item such as text item and press the 'Ctrl' key, a message will
appear.
How can I capture the event ?
Thanks.
Ivan

Duplicate thread. Please see the other one at:
<p>capture key and mouse event

Key and mouse event

Hi all,
anybody please tel me how can i access key and mouse events.here i don't have any GUI application.
thanks in advance
pradeep

If you don't have a GUI application then no events will be generated.
Or do you mean "GUI experience?" A quick google would have found you these:
http://java.sun.com/docs/books/tutorial/uiswing/events/mouselistener.html
http://java.sun.com/docs/books/tutorial/uiswing/events/keylistener.html

How do I remove scrolling from the cursor keys which was recently applied after downloading an 'Add-on'?

I recently downloaded an add-on called 'easy scroll' or something similar. It has meant my cursor keys now scroll up and down in the browser. However I use a web application that requires the use of the cursor keys to select options not to move around on the page. Can you tell me how I can reset scrolling to not use the cursor keys?
Thanks.

See:
* [[Troubleshooting extensions and themes]]

Bluetooth keyboard K810 and mouse T630 at the same time, repeating keys and mouse starts to stutter

I use a Lenovo Thinkpad Tablet 2, Windows 8.1(core edition), x86 (32bit).
If I pair a Bluetooth keyboard K810 and mouse T630 at the same time, with Wifi On, the keyboard starts repeating the keys and the mouse starts to stutter. Especially if WiFi is under load (when downloading something).
This doesn’t happens if I pair only the keyboard, or if I pair mouse and keyboard with Wifi OFF.
If I pair a Bluetooth keyboard and use a USB mouse with Wifi ON, everything works fine.
If I pair a Bluetooth mouse and use a USB keyboard with Wifi ON, everything works fine.
I think it is an issue with two Bluetooth devices paired at the same time with Wifi ON.
So here is a summary:
BT mouse and BT keyboard / Wifi ON ----> repeating chars and the mouse starts to stutter (bug)
BT mouse and BT keyboard / Wifi OFF ----> works fine
Only BT keyboard / Wifi ON ----> works fine
Only BT mouse / Wifi ON ----> works fine
USB mouse and BT keyboard / Wifi ON ----> works fine
USB keyboard and BT mouse / Wifi ON ----> works fine
Where is the problem? Is there any solution?
Solved!
Go to Solution.

I have solved the problem. In the Wlan-Drives-Settings there is the "Bluetooth Collaboration" option. I put the value to "Disable" and now works everything like charm.
Best regards, jC
Broadcom manual:
Bluetooth Collaboration
Bluetooth Collaboration enables general purpose input/output transmit suppression protocol between the IEEE 802.11 media access control (MAC) and an external Bluetooth chip to minimize transmit interference. Bluetooth Collaboration is enabled by default.

Access path difference between Primary Key and Unique Index

Hi All,
Is there any specific way the oracle optimizer treats Primary key and Unique index differently?
Oracle Version
SQL> select * from v$version;
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 IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
SQL> Sample test data for Normal Index
SQL> create table t_test_tab(col1 number, col2 number, col3 varchar2(12));
Table created.
SQL> create sequence seq_t_test_tab start with 1 increment by 1 ;
Sequence created.
SQL> insert into t_test_tab select seq_t_test_tab.nextval, round(dbms_random.value(1,999)) , 'B'||round(dbms_random.value(1,50))||'A' from dual connect by level < 100000;
99999 rows created.
SQL> commit;
Commit complete.
SQL> exec dbms_stats.gather_table_stats(USER_OWNER','T_TEST_TAB',cascade => true);
PL/SQL procedure successfully completed.
SQL> select col1 from t_test_tab;
99999 rows selected.
Execution Plan
Plan hash value: 1565504962
| Id | Operation         | Name       | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |            | 99999 |   488K|    74   (3)| 00:00:01 |
|   1 | TABLE ACCESS FULL| T_TEST_TAB | 99999 |   488K|    74   (3)| 00:00:01 |
Statistics
          1 recursive calls
          0 db block gets
       6915 consistent gets
        259 physical reads
          0 redo size
    1829388 bytes sent via SQL*Net to client
      73850 bytes received via SQL*Net from client
       6668 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
      99999 rows processed
SQL> create index idx_t_test_tab on t_test_tab(col1);
Index created.
SQL> exec dbms_stats.gather_table_stats('USER_OWNER','T_TEST_TAB',cascade => true);
PL/SQL procedure successfully completed.
SQL> select col1 from t_test_tab;
99999 rows selected.
Execution Plan
Plan hash value: 1565504962
| Id | Operation         | Name       | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |            | 99999 |   488K|    74   (3)| 00:00:01 |
|   1 | TABLE ACCESS FULL| T_TEST_TAB | 99999 |   488K|    74   (3)| 00:00:01 |
Statistics
          1 recursive calls
          0 db block gets
       6915 consistent gets
          0 physical reads
          0 redo size
    1829388 bytes sent via SQL*Net to client
      73850 bytes received via SQL*Net from client
       6668 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
      99999 rows processed
SQL> Sample test data when using Primary Key
SQL> create table t_test_tab1(col1 number, col2 number, col3 varchar2(12));
Table created.
SQL> create sequence seq_t_test_tab1 start with 1 increment by 1 ;
Sequence created.
SQL> insert into t_test_tab1 select seq_t_test_tab1.nextval, round(dbms_random.value(1,999)) , 'B'||round(dbms_random.value(1,50))||'A' from dual connect by level < 100000;
99999 rows created.
SQL> commit;
Commit complete.
SQL> exec dbms_stats.gather_table_stats('USER_OWNER','T_TEST_TAB1',cascade => true);
PL/SQL procedure successfully completed.
SQL> select col1 from t_test_tab1;
99999 rows selected.
Execution Plan
Plan hash value: 1727568366
| Id | Operation         | Name        | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |             | 99999 |   488K|    74   (3)| 00:00:01 |
|   1 | TABLE ACCESS FULL| T_TEST_TAB1 | 99999 |   488K|    74   (3)| 00:00:01 |
Statistics
          1 recursive calls
          0 db block gets
       6915 consistent gets
          0 physical reads
          0 redo size
    1829388 bytes sent via SQL*Net to client
      73850 bytes received via SQL*Net from client
       6668 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
      99999 rows processed
SQL> alter table t_test_tab1 add constraint pk_t_test_tab1 primary key (col1);
Table altered.
SQL> exec dbms_stats.gather_table_stats('USER_OWNER','T_TEST_TAB1',cascade => true);
PL/SQL procedure successfully completed.
SQL> select col1 from t_test_tab1;
99999 rows selected.
Execution Plan
Plan hash value: 2995826579
| Id | Operation            | Name           | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT     |                | 99999 |   488K|    59   (2)| 00:00:01 |
|   1 | INDEX FAST FULL SCAN| PK_T_TEST_TAB1 | 99999 |   488K|    59   (2)| 00:00:01 |
Statistics
          1 recursive calls
          0 db block gets
       6867 consistent gets
          0 physical reads
          0 redo size
    1829388 bytes sent via SQL*Net to client
      73850 bytes received via SQL*Net from client
       6668 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
      99999 rows processed
SQL> If you see here the even though statistics were gathered,
     * In the 1st table T_TEST_TAB, the table is still using FULL table access after creation of index.
     * And in the 2nd table T_TEST_TAB1, table is using PRIMARY KEY as expected.
Any comments ??
Regards,
BPat

Thanks.
Yes, ignored the NOT NULL part.Did a test and now it is working as expected
SQL> create table t_test_tab(col1 number not null, col2 number, col3 varchar2(12));
Table created.
SQL>
create sequence seq_t_test_tab start with 1 increment by 1 ;SQL>
Sequence created.
SQL> insert into t_test_tab select seq_t_test_tab.nextval, round(dbms_random.value(1,999)) , 'B'||round(dbms_random.value(1,50))||'A' from dual connect by level < 100000;
99999 rows created.
SQL> commit;
Commit complete.
SQL> exec dbms_stats.gather_table_stats('GREP_OWNER','T_TEST_TAB',cascade => true);
PL/SQL procedure successfully completed.
SQL> set autotrace traceonly
SQL> select col1 from t_test_tab;
99999 rows selected.
Execution Plan
Plan hash value: 1565504962
| Id | Operation         | Name       | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |            | 99999 |   488K|    74   (3)| 00:00:01 |
|   1 | TABLE ACCESS FULL| T_TEST_TAB | 99999 |   488K|    74   (3)| 00:00:01 |
Statistics
          1 recursive calls
          0 db block gets
       6912 consistent gets
          0 physical reads
          0 redo size
    1829388 bytes sent via SQL*Net to client
      73850 bytes received via SQL*Net from client
       6668 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
      99999 rows processed
SQL> create index idx_t_test_tab on t_test_tab(col1);
Index created.
SQL> exec dbms_stats.gather_table_stats('GREP_OWNER','T_TEST_TAB',cascade => true);
PL/SQL procedure successfully completed.
SQL> select col1 from t_test_tab;
99999 rows selected.
Execution Plan
Plan hash value: 4115006285
| Id | Operation            | Name           | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT     |                | 99999 |   488K|    63   (2)| 00:00:01 |
|   1 | INDEX FAST FULL SCAN| IDX_T_TEST_TAB | 99999 |   488K|    63   (2)| 00:00:01 |
Statistics
          1 recursive calls
          0 db block gets
       6881 consistent gets
          0 physical reads
          0 redo size
    1829388 bytes sent via SQL*Net to client
      73850 bytes received via SQL*Net from client
       6668 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
      99999 rows processed
SQL>

Difference between Unique key and Unique index

Hi All,
I've got confused in the difference between unique index & unique key in a table.
While we create a unique index on a table, its created as a unique index.
On the other hand, if we create a unique key/constraint on the table, Oracle also creates an index entry for that. So I can find the same name object in all_constraints as well as in all_indexes.
My question here is that if during creation of unique key/constraint, an index is automatically created than why is the need to create unique key and then two objects , while we can create only one object i.e. unique index.
Thanks
Deepak

This is only my understanding and is not according to any documentation, that is as follows.
The unique key (constraint) needs an unique index for achieving constraint of itself.
Developers and users can make any constraint (unique-key, primary-key, foreign-key, not-null ...) to enable,disable and be deferable. Unique key is able to be enabled, disabled, deferable.
On the other hand, the index is used for performance-up originally, unique index itself doesn't have the concept like constraints. The index (including non-unique, unique) can be rebuilded,enabled,disabled etc. But I think that index cannot be set "deferable-builded" automatic.

A way to distinguish between 'Parent' keys and 'Referential' keys

Hi,
We use referencial keys to specify the FK to a parent table and also link to other tables... I need to write a script that needs to distinguish between a 'Parent' key and and a 'Referential' keys. In the database they both look the same, as they are both foreign keys...
What's the easiest way to determine whether a FK is a link to a parent table or a link to an unrelated table..
I hope this question makes sense...
EDIT:
Here's an example of the tables, and a better explanation
CREATE TABLE PARENT_TABLE(
par_id number PRIMARY key,
par_name varchar2(200)
create TABLE RELATED_TABLE(
rel_id number PRIMARY key,
rel_name varchar2(200)
create TABLE CHILD_TABLE(
kid_id PRIMARY key,
kid_name varchar2(200),
par_id,
rel_id,
CONSTRAINT kid_par_fk FOREIGN KEY(par_id) REFERENCES PARENT_TABLE(par_id),
CONSTRAINT kid_rel_fk FOREIGN KEY (rel_id) REFERENCES RELATED_TABLE(rel_id)
)Ok, as you can see the child table has 2 references but no way to tell which one is the parent table.. In our database we have this hirearchy of parent-child tables (where it's one-to-many relationships) where we consider a table a parent of other.. And also we have a ton of other foreign keys that link to related tables (many-to-many) relationships...
Now i need a clean way of distinguishing between PARENT and RELATED table.. A more elegegant solution to a keeping a hierarchy table of parent, child tables.. I'm sure others have this kind of structure..
let me know if there is more clarification needed.. Sorry for the confusion..
Edited by: wonderboy87 on 23-Jan-2011 4:07 PM
Edited by: wonderboy87 on 23-Jan-2011 5:59 PM
Edited by: wonderboy87 on 23-Jan-2011 6:00 PM

wonderboy87 wrote:
Yes sorry.. I can see how consufing this is. Here goes;
CREATE TABLE PARENT_TABLE(
par_id number PRIMARY key,
par_name varchar2(200)
create TABLE RELATED_TABLE(
rel_id number PRIMARY key,
rel_name varchar2(200)
create TABLE CHILD_TABLE(
kid_id PRIMARY key,
kid_name varchar2(200),
par_id,
rel_id,
CONSTRAINT kid_par_fk FOREIGN KEY(par_id) REFERENCES PARENT_TABLE(par_id),
CONSTRAINT kid_rel_fk FOREIGN KEY (rel_id) REFERENCES RELATED_TABLE(rel_id)
)Ok, as you can see the child table has 2 references but no way to tell which one is the parent table.. You are right. There is no way to tell which one is the "parent". It's only your own business rules and usage that make one of the FK relationships to a "parent" while the other is to .. what, an "uncle"? ;-) Oracle has no way of knowing what your business rules and usage are.
In our database we have this hirearchy of parent-child tables (where it's one-to-many relationships) where we consider a table a parent of other.. And also we have a ton of other foreign keys that link to related tables (many-to-many) relationships...
Now i need a clean way of distinguishing between PARENT and RELATED table.. A more elegegant solution to a keeping a hierarchy table of parent, child tables.. I'm sure others have this kind of structure..
let me know if there is more clarification needed.. Sorry for the confusion..
Edited by: wonderboy87 on 23-Jan-2011 6:00 PM

Function Keys and Mouse Right Click Stopped Working On New iMac

I bought a new iMac a couple of days ago and everything was working fine until last night when I noticed that the volume up/down function keys and also the mouse right click no longer worked.
For the mouse I tried turning off the right click option and back on again and also tried another mouse which has the same problem. Both work ok on a MBP which I have.
I have tried doing the normal SMC and PRAM resets which doesn't solve the problem.
One program which I installed after I got the computer was Logmein which screwed up my audio settings. After uninstalling that my audio settings are ok but I was wondering if the program could also have changed some other settings.
Any ideas would be greatly appreciated.

Have you checked the System/Keyboard preference pane to see if the Function key option is checked?
OT

Key and mouse recorder

is it possible to build a java app that allow you to record and replay key-strokes and mouse actions?

Do a search on jfcUnit. It does exactly what you are talking about. It actually adds a listener to the AWT event system, and can listen for all events. It then plucks out key/mouse events as needed. You can record these, then probably play them back with the Robot class, although a translation may be needed to take an event and use the Robot class to play it back.

Is their a difference between primary key and unique key with not null valu

What is the difference in having a column as primary key and having unique key with not null for the column.
vinodh

SBH wrote:
For quick review, below is the link
http://www.dba-oracle.com/data_warehouse/clustered_index.htm
You appear to have stumbled on a site that is a mine of disinformation about Oracle.
>
It would be helpful, if you explain it too..thnx !!
The site is wrong and makes up its own terminology as it goes along.
If the value for clustering factor approaches the number of blocks in the base table, then the index is said to be clustered. http://www.oracle.com/pls/db112/search?remark=quick_search&word=clustered+index
There is no create clustered index in Oracle.
- Clustering factor affects the efficiency of an index.
- There can be clustered tables that you can create indexes on.
- An Index Organized table is a similar concept to the Microsoft SQL Server clustered index, but it isn't the same thing at all.

What am I doing to make my screen zoom in while I am using my mouse? It zooms to about double size, and using the control key and mouse will not return it to its former size.

When I am searching the internet and using my mouse, my screen will suddenly zoom in to about double size. Clicking control and mousing will not return it back to where it was. I have no idea what I am doing to cause this to happen or how to reverse it.

Hi.
If you're using a Magic Mouse, a double tap on the mouse with one finger will zoom.
Double tap again to unzoom.
Helpful?

Consistant Scrolling position between cursor keys and mouse - how to do it??

Similar Messages

Maybe you are looking for