# How use ## Use .NetCore tool for publish .dacpac file ### What's .dacpac A data-tier application (DAC) is a logical database management entity that defines all SQL Server objects - such as tables, views, and instance objects - associated with a user's database. It is a self-contained unit of SQL Server database deployment that enables data-tier developers and DBAs to package SQL Server objects into a portable artifact called a DAC package, or .dacpac file. <sup>[See more](https://docs.microsoft.com/en-us/sql/relational-databases/data-tier-applications/data-tier-applications?view=sql-server-2017)</sup> ### Requirements 1. .NET Core 8.0+ runtime installed ### Publish .dacpac with .Net tool #### Install the Dacpac.Tool package ```powershell dotnet tool install --global Dacpac.Tool ``` #### Run tool only with the required parameters 1. Use case Multi tenant database, your have same schema for multiple client on database server * Windows autentication (SSPI) ```powershell dotnet dacpac publish --dacpath=C:\artifact\db\ --server=mydatabase.server.contoso.com --databasenames='client1;client2;client3;client4' ``` * Specific User authentication ```powershell dotnet dacpac publish --dacpath=C:\artifact\db\ --server=mydatabase.server.contoso.com --databasenames='client1;client2;client3;client4' --userId=useWithPersmissionForUpdate --password=123455 ``` * Parameters |Name|Description|Default| |-------|-------|-----| |dacpath| Directory where the dacpac file is stored| Directory that the tool is running| |databasenames | The names of databases that need to be updated|It's requerid not have default| |namenattern|Pattern for search file|*.dacpac| |UseSspi|Indicates that the windows user should be used|true |userId|Database user <sub>Need permissions for schema change</sub>|carioca| |password| The password from 'userid' | IFromBrazilian| [See all parameters](https://docs.microsoft.com/en-us/dotnet/api/microsoft.sqlserver.dac.dacdeployoptions?redirectedfrom=MSDN&view=sql-dacfx-140.3881.1)
$ dotnet add package Dacpac.ToolNo README available.