How did the key product used to identify the product? What is an electronic process or a human identification?

Similar Questions

• How did the keyboard set on the baseplate on Satellite C855-1TD

  C855-1TD model *.

  How did the keyboard attached to the base plate?
  There is not any screws holding it down. Is it just stuck to the plate?

  Thank you

  It s a bit complicated on this model of laptop. I just hope you won't damage anything.
  Before you remove the keyboard, you must remove the optical disk drive. When ODD is deleted, you must use a plastic stick to push the back of the keyboard of the ODD housing slot. Push the keyboard until the corner rises on the upper surface of the case.
  After doing this a slice of plastic lever allows to insert between the keyboard and top box, carefully lift the edges of the keyboard until all locks are unlocked.

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• How did the foreign key that is recognized by the primary key

  Hi, when I have two user tables and userLevel and the primary key of the user is the user name and I add a field to userLevel userID is only to make the userID field in userLevel automatically the foreign key of the table? Or do you switch the engine of MyISAM tables to InnoDB to make relational links. Can someone please explain this in English clear to me, because I just can't get my head around this.

  In the case of a query such as SELECT statement, we talked, being a key actually means that the field is indexed so that the database can quickly look up.  Thus, in phpMyAdmin, you set the field to be indexed by the visualization of the structure of the table and clicking the icon index (the one with the Lightning) for the field in the Action section.

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• HOW DID PROBLEMAS CON MI USEFUL RED? ARE BRINGING ACTUALIZARLO Y NADA, ME DICE THAT IS INSTALLED THE MAS RECIENTE

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  Hello

  See this page to select your language:

  http://support.Microsoft.com/common/international.aspx

  ====================================

  Or sorry that it is area English.

  On the top of this page click v (English) in the United States and set on your tongue.

  I hope this helps.

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

• How to unlock key product windows 7

  Hello

  Recently my Sony Vaio HD has been corrupted, I replaced it with the new hard drive, but I don't have recovery DVD or USB.

  I tried to download the new copy of Microsoft windows site to aid the product key stuck on the back of my laptop, but it says the key is already used by another machine, which I believe is my old HD.

  If I can ask Microsoft for my Windows 7 unlock key, that i can reuse with new hard drive?

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• How did the same predicate is completed access and filter?

  SELECT select, j.job_title, d.department_name

  OF e hr.employees, hr.departments d, hr.jobs j

  WHERE e.department_id = d.department_id

  AND e.job_id = j.job_id

  AND select LIKE 'a % ';

  Execution plan

  ----------------------------------------------------------

  Hash value of plan: 975837011

  ---------------------------------------------------------------------------------------------

  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

  ---------------------------------------------------------------------------------------------

  | 0 | SELECT STATEMENT | 3. 189. 7 (15) | 00:00:01 |

  |* 1 | HASH JOIN | 3. 189. 7 (15) | 00:00:01 |

  |* 2 | HASH JOIN | 3. 141. 5 (20) | 00:00:01 |

  | 3. TABLE ACCESS BY INDEX ROWID | EMPLOYEES | 3. 60. 2 (0) | 00:00:01 |

  |* 4 | INDEX RANGE SCAN | EMP_NAME_IX | 3 | | 1 (0) | 00:00:01 |

  | 5. TABLE ACCESS FULL | JOBS | 19. 513. 2 (0) | 00:00:01 |

  | 6. TABLE ACCESS FULL | DEPARTMENTS | 27. 432. 2 (0) | 00:00:01 |

  ---------------------------------------------------------------------------------------------

  Information of predicates (identified by the operation identity card):

  ---------------------------------------------------

  1 - access("E".") DEPARTMENT_ID "=" D ". ("" DEPARTMENT_ID ")

  2 - access("E".") JOB_ID '=' J '. ("' JOB_ID ')

  4 - access ("E". "Last_name" LIKE 'A %') "

  filter ("E". "LAST_NAME" LIKE 'A %') "

  I understand not only how to select column is evaluated by the access and filter? Can someone there explain please? Or recommend me an article or document that explain this predicate excatly explains to explain the plan?

  Thanks in advance.

  Near NightWing.

  I believe that the predicate can be used to access THE index entries and if entries of access could include potentially "false positives" then filtering is required to remove the FPs.

  This filtering can be done in the same step of the operation (such as access) or as an extra step.

  My apologies, this has become much longer and more detailed that I intended it to be. :-(

  If I understand correctly,

  In terms of the explanation of the path, each step can include access and filtering process for "entries" (index or line). In the plan to explain the predicate section shows Information the use of predicate for step 'matching. "

  Some predicates can be "used" to ACCESS (ing) the entries, while the same or additional predicates (or even other) can be "used" to FILTER (ing) access entries (which have been consulted, but the optimizer is not sure that EACH AACCESSed entry is indeed a part of final result set). In such cases optimizer applies filtering predicate also during the operation stage. The optimizer can sometime even add additional operation steps or predicate [almost like a short circuit]

  So, using our previous configuration, allow us to run test cases.

  In this query we use AS predicate but the operand does NOT contain any 'wild' character In this case INDEX RANGE SCAN is performed, but since there is no wild characters are involved we can be sure that each entry using this predicate is indeed part of the final result set. This predicate Section shows that the predicate is used ONLY to access (index) entries.

  We know that the result set of this query is NULL lines.

  > explain plan for select v1 of tst where v1 as "A".

  ------------------------------------------------------------------------------

  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

  ------------------------------------------------------------------------------

  |   0 | SELECT STATEMENT |           |     1.     7.     1 (0) | 00:00:01 |

  |*  1 |  INDEX RANGE SCAN | TSTV1_IDX |     1.     7.     1 (0) | 00:00:01 |

  ------------------------------------------------------------------------------

  Information of predicates (identified by the operation identity card):

  ---------------------------------------------------

  1 - access ("V1" = 'A')

  However, in this application, there is a wildcard character in the predicate, so while the INDEX RANGE SCAN step access entries using this predicate, it could potentially access entries that can be part of the final result set. So in the SAME step of the INDEX RANGE SCAN operation the predicate is also used for filtering. Since this is the only predicate, it may seem redundant.

  > explain plan for select v1 of tst where v1 like 'a % '.

  ------------------------------------------------------------------------------

  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

  ------------------------------------------------------------------------------

  |   0 | SELECT STATEMENT |           |    24.   168.     1 (0) | 00:00:01 |

  |*  1 |  INDEX RANGE SCAN | TSTV1_IDX |    24.   168.     1 (0) | 00:00:01 |

  ------------------------------------------------------------------------------

  Information of predicates (identified by the operation identity card):

  ---------------------------------------------------

  1 - access ("V1" LIKE 'A %')

  filter ("V1" LIKE 'A %')

  If we add an another predicate as below (also includes wild character), it gets interesting. INDEX RANGE SCAN step performs two access AND filtering.

  Please note that the predicate 'V1' AS '%' is used to ACCESS and FILTER, fine FILTER uses additional predicates.

  > explain plan for select v1 of tst where v1 like 'A %' and v1 as "%c".

  ------------------------------------------------------------------------------

  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

  ------------------------------------------------------------------------------

  |   0 | SELECT STATEMENT |           |     1.     7.     1 (0) | 00:00:01 |

  |*  1 |  INDEX RANGE SCAN | TSTV1_IDX |     1.     7.     1 (0) | 00:00:01 |

  ------------------------------------------------------------------------------

  Information of predicates (identified by the operation identity card):

  ---------------------------------------------------

  1 - access ("V1" LIKE 'A %')

  filter ("V1" IS NOT NULL AND "V1" LIKE 'A %') AND "V1" LIKE "%c"

  When we change the predicate 'V1' LIKE 'A %' to 'V1' > 'A', then we can use the predicate to access entries AND do not forget that each entry using this predicate are

  Indeed part of results if other predicates are met. In this case optimizer of must not filter on 'V1' > 'A', wherever it must continue to filter on 'V1' LIKE '%c '.

  > explain plan for select v1 of tst where v1 > 'A' and v1 as "%c".

  ------------------------------------------------------------------------------

  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

  ------------------------------------------------------------------------------

  |   0 | SELECT STATEMENT |           |     1.     7.     1 (0) | 00:00:01 |

  |*  1 |  INDEX RANGE SCAN | TSTV1_IDX |     1.     7.     1 (0) | 00:00:01 |

  ------------------------------------------------------------------------------

  Information of predicates (identified by the operation identity card):

  ---------------------------------------------------

  1 - access("V1">'A')

  filter ("V1" IS NOT NULL AND "V1" LIKE "%c")

  Of course, if we do the predicate so that the entries are NOT accessible using the predicate, then for INDEX FULL SCAN (no Beach cannot be determined) operation comes into play and the predicate of ACCESS goes. All entries in the index are ALWAYS accessible (predicate applied no ACCESS) and FILTER predicate is applied.

  > explain plan for select v1 of tst where v1 like '%c %'

  ------------------------------------------------------------------------------

  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

  ------------------------------------------------------------------------------

  |   0 | SELECT STATEMENT |           |     1.     8 S     1 (0) | 00:00:01 |

  |*  1 |  INDEX SCAN FULL | TSTV1_IDX |     1.     8 S     1 (0) | 00:00:01 |

  ------------------------------------------------------------------------------

  Information of predicates (identified by the operation identity card):

  ---------------------------------------------------

  1 - filter ("V1" IS NOT NULL AND "V1" LIKE '%A%c')

  For the example proposed by JL, two predicates are used in the INDEX RANGE SCAN step to access THE entries. In addition, we can be sure that all entries that are accessible with success using this predicate can be included in the final result set. So not necessary filtering.

  > explain plan for select v1 of tst where v1 > 'A' and v1<>

  ------------------------------------------------------------------------------

  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

  ------------------------------------------------------------------------------

  |   0 | SELECT STATEMENT |           |    24.   168.     1 (0) | 00:00:01 |

  |*  1 |  INDEX RANGE SCAN | TSTV1_IDX |    24.   168.     1 (0) | 00:00:01 |

  ------------------------------------------------------------------------------

  Information of predicates (identified by the operation identity card):

  ---------------------------------------------------

  1 - access("V1">'A' AND "V1")<>

  Interestingly, when we change the 'B' in the previous query to 'A', change predicates of inequality, so we cannot use index. Optimizer knows this and switches for FTS and introduced an additional step of operation FILTER. In my view, the filter predicate can be applied in operation of FTS. Additional FILTER stage is the predicate as FALSE hard-coded value. It does not yet use our predicate of the query.

  Well, don't know if he actually bypasses the operation of FTS. SQL trace can indicate that.

  > explain plan for select v1 of tst where v1 > 'A' and v1<>

  ---------------------------------------------------------------------------

  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

  ---------------------------------------------------------------------------

  |   0 | SELECT STATEMENT |      |     1.     8 S     0 (0) |          |

  |*  1 |  FILTER |      |       |       |            |          |

  |   2.   TABLE ACCESS FULL | TST |    49.   343.     3 (0) | 00:00:01 |

  ---------------------------------------------------------------------------

  Information of predicates (identified by the operation identity card):

  ---------------------------------------------------

  1 - filter (NULL IS NOT NULL AND NULL IS NOT NULL)

  Subsequently, optimizer decides to use the INDEX RANGE SCAN, even if the predicate is always an inequality. Go figure...

  > explain plan for select v1 of tst where v1 > 'A' and v1<=>

  -------------------------------------------------------------------------------

  | ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

  -------------------------------------------------------------------------------

  |   0 | SELECT STATEMENT |           |     1.     8 S     0 (0) |          |

  |*  1 |  FILTER |           |       |       |            |          |

  |*  2 |   INDEX RANGE SCAN | TSTV1_IDX |     1.     8 S     0 (0) | 00:00:01 |

  -------------------------------------------------------------------------------

  Information of predicates (identified by the operation identity card):

  ---------------------------------------------------

  1 - filter (NULL IS NOT NULL)

  2 - access("V1">'A' AND "V1")<>

  As others have said, it is difficult to understand and predict the path, but fortunately Oracle doing the right thing, 99% of the time.

  VR

  Sudhakar

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  It makes no difference if the sender is in my address book, or if I leave hidden content. And even if I'm on the subject, why should I allow content hidden each time?

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  Thank you.

  Mark - it's a DATE, not a TIMESTAMP

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  Table created.

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  ------------------------------------------------------------------------

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  Kind regards

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• Vista key in use/called/activated/work - now what?

  Hello

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  Thank you

  Dennis

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  I hope this helps.

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  Lorien - MCSA/MCSE/network + / has + - if this post solves your problem, please click the 'Mark as answer' or 'Useful' button at the top of this message. Marking a post as answer, or relatively useful, you help others find the answer more quickly.

• FROM SHAPED DATENREPORT (how on the same page)

  Hello everyone
  
  Yes, I know that it is built in a design of two pages where the first is the form and the second report, but I want it for both on the same page so that you can see what he has on the report and add his own line to the table. Well, I could make the creation of a form, then by changing the page and then add another region. Alright. But then I don't know how to link them together so that the data is passed to the form of the report.
  
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  no indication of how this problem would be invaluable for me
  
  Thank you
  
  Alvaro

  Alvaro:

  This help if you supplied alias names to the "loc - id" of each table column in the SQL query? Something like

  select l.loc_id location_loc_id, l.company, l.postcode, l.street,l.town, e.eval_id, e.loc_id evaluation_loc_id, e.locum_reg, e.date_booked, e.items, e.addicts, e.number_staff, e.attitude_staff, e.organisation, e.stock_filing, e.agency
  from location l, evaluation e
  where l.loc_id = e.loc_id
  

  CITY