Single file attach

SQL Server know if there is recovery work needed this is registered in the mdf file. If it did, how would it provide a consistent database? The net various forums are littered with posts about lost databases since ldf files was "lost" and starting SQL Server or attaching the mdf file wasn't possible. Sign in. United States English. Ask a question. Quick access. Search related threads. Remove From My Forums.

Answered by:. Archived Forums. Sign in to vote. Msg , Level 21, State 1, Line 1 Could not redo log record , for transaction ID , on page , database 'world' database ID 5. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Applies to: SQL Server all supported versions. Attaches a database that has only one data file to the current server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.

Do not use this procedure on a replicated database. We recommend that you do not attach or restore databases from unknown or untrusted sources. Such databases could contain malicious code that might execute unintended Transact-SQL code or cause errors by modifying the schema or the physical database structure. To avoid shipping loose files entirely, consider using embedded resources. Attaching to a running self-contained single-file executable requires an extra file: mscordbi.

Without this file Visual Studio may produce the error "Unable to attach to the process. A debug component is not installed. To fix these errors, mscordbi needs to be copied next to the executable. A copy of mscordbi. Single-file doesn't bundle native libraries by default.

On Linux, we prelink the runtime into the bundle and only application native libraries are deployed to the same directory as the single-file app. On Windows, we prelink only the hosting code and both the runtime and application native libraries are deployed to the same directory as the single-file app.

This is to ensure a good debugging experience, which requires native files to be excluded from the single file. There is an option to set a flag, IncludeNativeLibrariesForSelfExtract , to include native libraries in the single file bundle, but these files will be extracted to a directory in the client machine when the single file application is run.

Specifying IncludeAllContentForSelfExtract will extract all files even the managed assemblies before running the executable.

This preserves the original. NET Core single-file deployment behavior. Single-file application will have all related PDB files alongside it and will not be bundled by default. If you want to include PDBs inside the assembly for projects you build, set the DebugType to embedded as described below in detail. Certain files can be explicitly excluded from being embedded in the single-file by setting following metadata:. For example, to place some files in the publish directory but not bundle them in the single-file:.

The PDB file for an assembly can be embedded into the assembly itself the. Since the symbols are part of the assembly, they will be part of the single-file application as well:.

For example, add the following property to the project file of an assembly to embed the PDB file to that assembly:. NET 6, single file apps can be created with compression enabled on the embedded assemblies.

The produced single-file will have all of the embedded assemblies compressed which can significantly reduce the size of the executable. Compression comes with a performance cost. On application start, the assemblies must be decompressed into memory, which takes some time. It's recommended to measure both the size impact and startup cost impact of enabling compression before using it as the impact varies a lot between different applications.