What is a Btrieve error?

An error occurred during disk read/write. This status code indicates the file has been damaged and must be recreated, or that the file on the open call was not created by Btrieve.

How does Btrieve work?

Btrieve allows for duplicate key values in an index. Btrieve handles duplicate keys using either a linked duplicate method, or by using a repeating duplicate method (this terminology started being used when version 6.0 was released).

What is MicroKernel database engine?

The MicroKernel Engine stores information in files, which can be up to terabytes in size for the 13.0 version file format, (256 GB for the 9.5 version, 128 GB for earlier 9. x versions, and 64 GB for other earlier versions). Inside each data file are records, which contain bytes of data.

How do I close MicroKernel database engine?

To do this, perform the following steps:

1. Click Start | Pervasive. SQL | Pervasive Control Center.
2. Expand Pervasive. SQL.
3. Expand Local Client.
4. Click Microkernel Router.
5. Select Access.
6. Untick Use Local MicroKernel Engine.
7. Click OK.

How do I completely uninstall and reinstall pervasive?

1. Open PervasiveMin folder.
2. Run SetupWorkgroup32_x86.exe (for 2020 and higher versions) or PervasivePSQLv11WGE_x86.msi (for 2019.2 and earlier versions)
3. Select Next.
4. Accept the license agreement, and then select Next.
5. Select Run as a Service, and then Next.
6. Select Complete, and then Next.
7. Select Install.
8. Select Finish.

Which are the disadvantages of a microkernel?

Disadvantage of Microkernel Providing services in a microkernel system are expensive compared to the normal monolithic system. Context switch or a function call needed when the drivers are implemented as procedures or processes, respectively.

How does a microkernel work?

In computer science, a microkernel (often abbreviated as μ-kernel) is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system (OS). These mechanisms include low-level address space management, thread management, and inter-process communication (IPC).

How do I restart the pervasive actian database engine or pervasive actian services on a server or workstation?

Locate the Pervasive/Actian service, click once on the service(s) to highlight them, right-click and choose Stop. Once the service(s) are stopped, or If the service is already stopped, right-click on the service(s) and choose Start, to start the service(s). (verify the Startup type is automatic).

How do I restart a pervasive database engine?

1. From the Windows desktop, click Start. Point to Settings, and click Control Panel. Double-click Administrative Tools. Double-click Services.
2. In the right pane, click Pervasive PSQL Client Engine.
3. On the Action menu, click Stop.
4. On the Action menu, click Restart.

How do I reinstall pervasive?

How do I get rid of pervasive?

Resolution. Make sure all users are out of Sage if you are uninstalling the pervasive/actian database engine on the server. Go to Programs and Features, uninstall Pervasive PSQL [version] for 300CRE v15. 1 and older, or Actian PSQL [version] for 300CRE v16.

What is the major advantage disadvantage of the microkernel?

The microkernel also provides more security and reliability, since most services are running as user — rather than kernel — processes. Unfortunately, microkernels can suffer from performance decreases due to increased Page 2 system function overhead.

What are the advantages and disadvantages of microkernels?

Advantages and Disadvantages of Microkernel Microkernel architecture is compact and isolated, so it may perform better. The system expansion is more accessible, so it may be introduced to the system application without disrupting the kernel. When compared to monolithic systems, microkernels have fewer system crashes.

What is the main disadvantage of the microkernel structure?

Why is microkernel reliable?

A microkernel is the backbone of a reliable OS Microkernels provide a minimal set of basic process management functions and hardware abstractions. Most of the remaining hardware and software support is done through special processes that run outside of the kernel address space.

What is the disadvantage of microkernel?

What are the common Btrieve requester errors?

-4900: The Btrieve Requester is unable to access the NetWare Runtime server See 99: The Btrieve Requester is unable to access the NetWare Runtime server . -4901: Internal transaction error See 98: The MicroKernel detected an internal transaction error . -4902: The data buffer is too small See 97: The data buffer is too small .

What does Btrieve error code 25 mean?

That is to say, if you try to search Btrieve Error Code 25, you should search “025” instead of “25.” The specified operation does not exist or is not valid. You may receive this error if you are running a general-release version of the V8 client software against a pre-release version of the V8 database engine.

Why is my Btrieve file not opening over an existing file?

If an application tried to create a file over an existing file, the existing file is open or the operating system will not allow the operation for another reason. In an attempt to create a Btrieve file over existing Btrieve file, this status will be returned.

Why do I get a status code when opening a Btrieve file?

This status code is returned in one of the following situations: The MicroKernel did not create the file, or a pre-v3.x MicroKernel created it. While using an earlier version of Btrieve, you opened a file created by a later version that has a format incompatible with the earlier version. The first page of the file may be damaged.