Windows XP

"Permanent" means "not capable of being reversed or returned to the original condition." In other words, if they are truly "permanently" deleted, you cannot get them back.

There are many Linux operating systems that can be run solely off of a USB or live CD/DVD.

Just to name a few:

Puppy Linux

SliTaz

Chromium OS

In a recent patch, Blizzard gave people the ability to turn off all experience gains. This includes battle grounds, however if you turn off experience, you will get put into a separate battle ground just for people who have experience turned off.

To actually turn off experience, you have to talk to an npc in either orgrimmar or stormwind.

double-click the left mouse button

google it, under nvidia drivers, it will bring you to there driver site where u have to fill in the os, card info etc like that.. it will then direct you to where your drivers for your card is.. so have the info ready ahead of time.

ms dos. unix.

single (1.0)

No, outdated some time back now.

• Concurrency control is the problem of synchronizing concurrent transactions (i.e., order the operations of concurrent transactions) such that the following two propertiesare achieved:

- the consistency of the DB is maintained

- the maximum degree of concurrency of operations is achieved

• Obviously, the serial execution of a set of transaction achieves consistency, if each single transaction is consistent

Conflicts

• Conflicting operations: Two operations Oij (x) and Okl(x) of transactions Ti and Tk

are in conflict iff at least one of the operations is a write, i.e.,

- Oij = read(x) and Okl = write(x)

- Oij = write(x) and Okl = read(x)

- Oij = write(x) and Okl = write(x)

• Intuitively, a conflict between two operations indicates that their order of execution is important.

• Read operations do not conflict with each other, hence the ordering of read operations does not matter.

• Example: Consider the following two transactions

T1: Read(x)

x ← x + 1

Write(x)

Commit

T2: Read(x)

x ← x + 1

Write(x)

Commit

- To preserve DB consistency, it is important that the read(x) of one transaction is not between read(x) and write(x) of the other transaction.

Schedules

• A schedule (history) specifies a possibly interleaved order of execution of the operations O of a set of transactions T = {T1, T2, . . . , Tn}, where Ti is specified by a partial order (Σi , ≺i). A schedule can be specified as a partial order over O, where - ΣT =Sn i=1 Σi - ≺T ⊇ Sn i=1 ≺I - For any two conflicting operations Oij , Okl ∈ ΣT , either Oij ≺T Okl or Okl ≺T Oij

• A schedule is serial if all transactions in T are executed serially.

• Example: Consider the following two transactions

T1: Read(x)

x ← x + 1

Write(x)

Commit

T2: Read(x)

x ← x + 1

Write(x)

Commit

- The two serial schedules are S1 = {Σ1, ≺1} and S2 = {Σ2, ≺2}, where

Σ1 = Σ2 = {R1(x), W1(x), C1, R2(x), W2(x), C2}

≺1= {(R1, W1),(R1, C1),(W1, C1),(R2, W2),(R2, C2),(W2, C2),

(C1, R2), . . . }

≺2= {(R1, W1),(R1, C1),(W1, C1),(R2, W2),(R2, C2),(W2, C2),

(C2, R1), . . . }

• We will also use the following notation:

- {T1, T2} = {R1(x), W1(x), C1, R2(x), W2(x), C2}

- {T2, T1} = {R2(x), W2(x), C2, R1(x), W1(x), C1}

Serializability

• Two schedules are said to be equivalent if they have the same effect on the DB.

• Conflict equivalence: Two schedules S1 and S2 defined over the same set of

transactions T = {T1, T2, . . . , Tn} are said to be conflict equivalent if for each pair

of conflicting operations Oij and Okl , whenever Oij <1 Okl then Oij <2 Okl.

- i.e., conflicting operations must be executed in the same order in both transactions.

• A concurrent schedule is said to be (conflict-)serializable iff it is conflict equivalent to a serial schedule

• A conflict-serializable schedule can be transformed into a serial schedule by swapping non-conflicting operations

• Example: Consider the following two schedules

T1: Read(x)

x ← x + 1

Write(x)

Write(z)

Commit

T2: Read(x)

x ← x + 1

Write(x)

Commit

- The schedule {R1(x), W1(x), R2(x), W2(x), W1(z), C2, C1} is

conflict-equivalent to {T1, T2} but not to {T2, T1}

Concurrency Control Algorithms

• Taxonomy of concurrency control algorithms

- Pessimistic methods assume that many transactions will conflict, thus the concurrent

execution of transactions is synchronized early in their execution life cycle

∗ Two-Phase Locking (2PL)

· Centralized (primary site) 2PL

· Primary copy 2PL · Distributed 2PL

∗ Timestamp Ordering (TO)

· Basic TO

· Multiversion TO

· Conservative TO

∗ Hybrid algorithms

- Optimistic methods assume that not too many transactions will conflict, thus delay

the synchronization of transactions until their termination

∗ Locking-based

∗ Timestamp ordering-based

DDB 2008/09 J. Gamper Page 10Locking Based Algorithms

• Locking-based concurrency algorithms ensure that data items shared by conflicting operations are accessed in a mutually exclusive way. This is accomplished by associating a "lock" with each such data item.

• Two types of locks (lock modes)

- read lock (rl) - also called shared lock

- write lock (wl) - also called exclusive lock

• Compatibility matrix of locks rli(x) wli(x) rlj (x) compatible not compatible

wlj (x) not compatible not compatible

• General locking algorithm

1. Before using a data item x, transaction requests lock for x from the lock manager

2. If x is already locked and the existing lock is incompatible with the requested lock, the transaction is delayed

3. Otherwise, the lock is granted Locking Based Algorithms

• Example: Consider the following two transactions

T1: Read(x)

x ← x + 1

Write(x)

Read(y)

y ← y − 1

Write(y)

T2: Read(x)

x ← x ∗ 2

Write(x)

Read(y)

y ← y ∗ 2

Write(y)

- The following schedule is a valid locking-based schedule (lri(x) indicates the

release of a lock on x):

S = {wl1(x), R1(x), W1(x), lr1(x)

wl2(x), R2(x), W2(x), lr2(x)

wl2(y), R2(y), W2(y), lr2(y)

wl1(y), R1(y), W1(y), lr1(y)}

- However, S is not serializable

∗ S cannot be transformed into a serial schedule by using only non-conflicting swaps

∗ The result is different from the result of any serial execution

Two-Phase Locking (2PL)

• Two-phase locking protocol

- Each transaction is executed in two phases

∗ Growing phase: the transaction obtains locks

∗ Shrinking phase: the transaction releases locks

- The lock point is the moment when transitioning from the growing phase to the

shrinking phase Two-Phase Locking (2PL) . . .

• Properties of the 2PL protocol

- Generates conflict-serializable schedules

- But schedules may cause cascading aborts

∗ If a transaction aborts after it releases a lock, it may cause other transactions that

have accessed the unlocked data item to abort as well

• Strict 2PL locking protocol

- Holds the locks till the end of the transaction

- Cascading aborts are avoided

DDB 2008/09 J. Gamper Page 14Two-Phase Locking (2PL) . . .

• Example: The schedule S of the previous example is not valid in the 2PL protocol:

S = {wl1(x), R1(x), W1(x), lr1(x)

wl2(x), R2(x), W2(x), lr2(x)

wl2(y), R2(y), W2(y), lr2(y)

wl1(y), R1(y), W1(y), lr1(y)}

- e.g., after lr1(x) (in line 1) transaction T1 cannot request the lock wl1(y) (in line 4).

- Valid schedule in the 2PL protocol

S = {wl1(x), R1(x), W1(x),

wl1(y), R1(y), W1(y), lr1(x), lr1(y)

wl2(x), R2(x), W2(x),

wl2(y), R2(y), W2(y), lr2(x), lr2(y)}

Timestamp Ordering . . .

• Basic timestamp ordering is "aggressive": It tries to execute an operation as soon as it receives it

• Conservative timestamp ordering delays each operation until there is an assurance that it will not be restarted, i.e., that no other transaction with a smaller timestamp can arrive

- For this, the operations of each transaction are buffered until an ordering can be established so that rejections are not possible

• If this condition can be guaranteed, the scheduler will never reject an operation

• However, this delay introduces the possibility for deadlocks

• Multiversion timestamp ordering

- Write operations do not modify the DB; instead, a new version of the data item is created: x1, x2, . . . , xn

- Ri(x) is always successful and is performed on the appropriate version of x, i.e., the version of x (say xv) such that wts(xv) is the largest timestamp less than ts(Ti)

- Wi(x) produces a new version xw with ts(xw) = ts(Ti) if the scheduler has not

yet processed any Rj (xr) on a version xr such that ts(Ti) < rts(xr)

i.e., the write is too late.

- Otherwise, the write is rejected.

• The previous concurrency control algorithms are pessimistic

• Optimistic concurrency control algorithms

- Delay the validation phase until just before the write phase

- Ti

run independently at each site on local copies of the DB (without updating the DB) - Validation test then checks whether the updates would maintain the DB consistent:

∗ If yes, all updates are performed ∗ If one fails, all Ti 's are rejected

• Potentially allow for a higher level of concurrency

Deadlock Management

• Deadlock: A set of transactions is in a deadlock situation if several transactions wait for each other. A deadlock requires an outside intervention to take place.

• Any locking-based concurrency control algorithm may result in a deadlock, since there is mutual exclusive access to data items and transactions may wait for a lock

• Some TO-based algorihtms that require the waiting of transactions may also cause deadlocks

• A Wait-for Graph (WFG) is a useful tool to identify deadlocks

- The nodes represent transactions

- An edge from Ti to Tj indicates that Ti is waiting for Tj

- If the WFG has a cycle, we have a deadlock situation

• Deadlock management in a DDBMS is more complicate, since lock management is not

centralized

• We might have global deadlock, which involves transactions running at different sites

• A Local Wait-for-Graph (LWFG) may not show the existence of global deadlocks

• A Global Wait-for Graph (GWFG), which is the union of all LWFGs, is needed

Deadlock Prevention

• Deadlock prevention: Guarantee that deadlocks never occur

- Check transaction when it is initiated, and start it only if all required resources are available.

- All resources which may be needed by a transaction must be predeclared

• Advantages

- No transaction rollback or restart is involved

- Requires no run-time support

• Disadvantages

- Reduced concurrency due to pre-allocation

- Evaluating whether an allocation is safe leads to added overhead

- Difficult to determine in advance the required resources

Conclusion

• Concurrency orders the operations of transactions such that two properties are

achieved: (i) the database is always in a consistent state and (ii) the maximum

concurrency of operations is achieved

• A schedule is some order of the operations of the given transactions. If a set of

transactions is executed one after the other, we have a serial schedule.

• There are two main groups of serializable concurrency control algorithms: locking based and timestamp based

• A transaction is deadlocked if two or more transactions are waiting for each other. A Wait-for graph (WFG) is used to identify deadlocks

• Centralized, distributed, and hierarchical schemas can be used to identify deadlocks

If you already have a copy of OE installed it is preventing you from overwriting it. It should be located in your base OE folder. Deleting it does nothing, as the setup program will create it and then run it. This obviously causes the conflict which makes sense, after all Progress hates you.

"Windows Security Center helps provide security to your computer. It does such things as check firewall settings, Internet security settings and User Account security settings."

paging file is being filled ... get more ram and HDD space.... page file should be 1.5 the size of your ram... if it is constantly being accessed and over used get more ram....

office button

thenx

You cant.

home

(b) ntuser.Dat

You can press Ctrl+Alt+Del and it will bring up the task manager.

I have looked at their website. It is unique to the repo industry. One of a kind. So its either the greatest thing since sliced bread OR................ You fill in the blank. It shares a lot of characteristics of a business concept that is better known to the BBB and state Attorneys General. Does it offer any training at all??? Does it offer workmens comp to its employees?? Does it meet the 4 tests the IRS uses to determine if you are really a "subcontractor"? Please let the forum know what you decide.

Yes our company has been working with repoplus for 8 months. Yes they are a real company. Yes they provide training. I am not an employee so I don't know about the workmen's comp insurance but I know they have 2.5 million in general liability and we are very happy to be affiliated with them. If you need any information send an email I would be happy to answer any of your questions.

I have filled all the paperwork and mailed it today...I will let you know if they live up to their end of the bargain!

Does anyone else have any information they can share? I would like to get some more information from someone who has a current or past employment history with Repoplus. Thanks, --Kath

Go to RIPOFFREPORT.COM and type in repo plus in the search engine and you will find a few people have shared some experiences with them...hoped it helps

Repo Plus is a fraud!

And anyone posting here that claims they have made money with this company is ASLO A FRAUD because they will not meet face to face with anyone who wants to verify it!

On another very reliable website I found this.

QUOTE: REPOPLUS LLC ADVERTISES THE FOLLOWING:

Claim: Their office is located at 20902 67th Ave NE, Suite 387, Arlington, WA 98223

Fact: The above address is only a mail forwarding business. There is no such "suite" in the building. The owner is MoneySaver Stowaway Storage & Mail Center with a phone of 360-435-3866.

Claim: They conduct business in the State of Washington

Fact: There is no business license and no corporation listed with the Secretary of State in Washington for the name of RepoPlus LLC.

Claim: Their parent corporation is filed in the State of Delaware:

Fact: No corporation is listed in the State of Delaware under RepoPlus LLC

Fact: They are listed in North Carolina, which only gives them the authority to advertise and do business in North Carolina

Claim: The Managing Director is Paul Smith.

Fact: We contacted Paul Smith to offer an endorsement of his business opportunity based on verification of the company and its claims. Two emails from "Paul Smith" were received from Amsterdam, Netherlands and not the USA. Mr. Smith declined to provide us with any information at all, which included the following questions:

1) Where their toll free number of 800-205-6512 terminates at?

2) Verify that RepoPlus LLC is licensed in the State of Washington?

3) Where their company office is located?

Claim: They conduct Surveillance, Fraud Investigations, Repossessions, Arson & Fire Investigation, and other types of investigations.

Fact: RepoPlus LLC has no private investigative license to operate in the State of Washington. Nor do we have any evidence they have a license in any other state where regulated.

Fact: RepoPlus LLC has no repossession license to operate in the State of Washington. Nor do we have any evidence they have a license in any other state where regulated.

CAUTION: Acting as a RepoPlus Agent in your state places direct responsibility and liability upon you when advertising, promoting, or performing any state regulated private investigation assignments or repossession services. Nearly all states require repossession licenses for agents. Nearly all states require a PI License for surveillance and other advertised services that RepoPlus promotes.

Claim: They claim to have 240 agents nationwide, and that each agent has a protected territory to solicit and conduct business on their behalf.

Fact: There is no evidence to support the claim that RepoPlus has 240 agents.

Fact: There are only 100 cities in the USA with a population of 100,000 or more. Therefore, it appears RepoPlus has oversold their major city business opportunities in the protected areas where they continue to promote more protected areas.

OTHER FACTS:

There is a Better Business Bureau Report in Raliegh, North Carolina which indicates RepoPlus LLC used to have an office there, under the same contact name of Paul Smith, with the same toll free 800 number that terminates to somewhere unknown.

They advertise for employees. However, the documents received all contain a business opportunity contract at a cost of $450.00

They do not accept business checks, personal checks, or any credit cards. They only accept cashier checks and money orders, which can be cashed anywhere in the world, including Amsterdam where Paul Smith's emails come from.

The four (4) contracts applicants are required to sign are authored in a manner to protect RepoPlus LLC from any criminal complaint pertaining to promising employment and income to an agent. The agent applicant, at his/her own expense, is required to establish a business name and business tax identification number before RepoPlus LLC will accept the $450.00 fee. Business to Business Agreements generally do not fall into the category of a criminal complaint as long as both parties sign. Therefore, the Business Agreement should be read very carefully as it spells out RepoPlus LLC duties of collecting a percentage on every case handled by the agent, with no guarantees of how many cases (if any) RepoPlus LLC will provide the agent. Further, their money back refund of the $450.00 is only available if the agent performs ten cases. We have no evidence that anyone has received their refund.

CAUTION: One of RepoPlus LLC requirements is gathering personal identification of the applicant when the fee is mailed in. It includes the applicant's driver's license, social security number, date of birth, and last seven years of residency.

1) All of the above information may be delivered to Amsterdam, Netherlands.

2) All of the above information is necessary to access a credit report.

3) All of the above information can lead to identity theft.

RepoPlus LLC requires a Bond Disclosure. However, there is no evidence of any bonding company issuing bonds to RepoPlus LLC for it's agents.

SUMMARY:

We cannot recommend this company based on the refusal of Paul Smith refuses to allow anyone to meet with any employee at any office in the USA and refuses to participate in verifying any item of the above; and based on the fact that no one to our knowledge has ever met Paul Smith; and based on Paul Smith's procedure of requiring his agent applicants to blindly mail in their $450 payment to a mail forwarding address without the benefit of the applicant meeting anyone at their office (wherever that may be); and based on the fact we cannot find any authorization that RepoPlus LLC can conduct business lawfully in the State of Washington; and based on the fact that RepoPlus LLC is clearly advertising services that only a licensed private investigative business in the State of Washington has the right to do; and based on the lack of evidence that their toll free number terminates in the USA when the evidence suggests it terminates in Europe; and based on the lack of evidence that there really is a commercial office where potential applicants can present their $450 fee to RepoPlus in person; and based on the company's requirement of providing personal identification to be potentially given to those in Europe where the major news organizations have reported widespread identity theft rings -

UPDATED ADDITIONAL INFORMATION:

Quote: Company is registered in the State of North Carolina - SOS #0698483

Registered Agent: Paul Smith

Registered Office Mailing Address: 3125 Poplarwood Cr. Suite 116 Raleigh, NC 27604 (corporate address is another mail drop facility)

Registered Office Street Address: 3125 Poplarwood Cr. Suite 116 Raleigh, NC 27604

Principal Office telephone Number: (309) 397-0902

Principal Office Mailing Address: 3125 Poplarwood Cr. Suite 116 Raleigh, NC 27604

Principal Office Street Address: 3125 Poplarwood Cr. Suite 116 Raleigh, NC 27604

An Internet reverse phone search for (309) 397-0902, on 01/22/05, gave no record other than it was a cellphone in Peoria, IL with service provided by Cellco Partnership DBA Verizon. A call to the number had a voicemail identified as a Cindy Tanner. A call to Ms. Tanner indicated this number is a personal cell.

A whitepages.com search on the address revealed several businesses at the address, none of which were listed as Repoplus LLC. Several phone calls to current businesses at the main address revealed the building was run by a Highwoods ing Service (919) 827-4468. A phone call to Highwoods ing Service revealed #116 is a mailbox maintained at that location.

A whois internet search revealed the following:

Registrant: Midnight Incorporated

Address: 3125 Poplarwood Ct Suite 116 Raleigh, NC 27604 US

First Registered: October 15, 2003

Last Updated: October 15, 2003

Administrative Contact: Smith, Paul greengrace420@hotmail.com 3125 Poplarwood Ct Suite 116 Raleigh, NC 27604 US 919 877 5726 (This number is answered as Repoplus)

Technical Contact: Corporation, Infinology help@infinology.com 270 Storke Rd Suite 10 Goleta, CA 93117 US 800-471-5391

Name Servers: DNS1.INFINOLOGY.NET 38.118.142.211 DNS2.INFINOLOGY.NET 38.118.142.212

Information Source: OpenSRS

All the above was obtained from public access websites on or about 01/22/05.

Also, The RepoPlus phone numbers appear to be "spoofed" and may be coming from a company called "J2 Connect" out of California

You can talk to a phony name on the phone when they CALL YOU. They use something called a spoof phone. But you NEVER MEET ANYONE TO VERIFY anything. And no PI License in ANY State and NO Repo license in ANY state.

They have been reported to Homeland Security because one of their contracts requires your SS and Drivers License and Date of Birth!

ANYONE WITH INFORMATION AND WORKING WITH THIS COMPANY PLEASE RESPOND. WE HAVE BEEN TRYING TO DEAL WITH PAUL SMITH. HE DOES NOT RETURN PHONE CALLS, HE CANCELS CONF CALLS WITHOUT LETTING ANYONE KNOW. HE WILL NOT RESOND TO EMAIL THEN WILL CLIAM HE ALREADY DID. WE ARE TRYING TO START A REPO BUSINESS AND PAUL SMITH IS MAKING IT DIFFICULT. ANYONE GOOD OR BAD PLEASE RESPOND WE NEED INFOMATION.

I just mailed off my contract to be come a skip tracer for them Then I found this forum. Can anyone tell me or give me more information on the Repo Plus. I would like to know if it is a scam before I go any further or if I'm looking into a good job relationship. Would Like to talk to individuals already working with them or companys that have dealt with them. Please e-mail me at gstutz@adams50.org. or garybearcat1@msn.com

sequential file organization

index file orgaization

diect file orgaization

manager

owners

Hold down the Ctrl key as you click on the files you want to select.

File extension.

two