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SQL Sever 2025 request with SQL connection
Hello, I installed SQL Server 2025 on a new VM, and I’m using a C# project to initialize my database based on a model (creating tables, foreign keys, default values, etc.). The process is extremely slow on SQL Server 2025: on my SQL Server 2022 environment, it takes about 30 minutes, but my first test on 2025 ran for over 4 hours. I’m connecting to SQL using a SQL authentication login (I tried both SA and a newly created account — same issue). I then tested using a Windows Authentication login, and surprisingly, the performance issue disappeared. Are there any known issues related to SQL authentication in SQL Server 2025?
Cannot login to Analyses Services SQL 2025 Standard
Hello, I have installed SQL Server 2025 Standard Developer and no way to login to Analyses Services. I have latest version of SSMS (so drivers/libraries should not be an issue): I keep getting this: I've even tried with connection string with server name and instance - no luck. I know that after installing SQL 2025 Server Enterprise, there is no such problem with Analyses Services. Any help would be very appreciated. Best regards!
Database Level Collation Issues
Some background information. In the past we had a database where we didn't really care about collation at the database, table/column, functions and views. Though now we have a requirement due to a technology acquisition, requires SQL_Latin1_General_CP1_CI_AS. Microsoft seems to not have a simple method that guarantees changing the collation throughout the database on complex DBs with large amounts of tables, columns, functions, etc... specially with high dependencies, FKs and PKs and not affect any of the data (no moving the data is not simple). I have a command, where I stop all of the SQL services and any connections to the DB and use the following command line to change the collation to the one I specify. The issue is this command only works about 65% of the time and no clue to the why it fails the other 35%. The command used is: The parameter "-s" is necessary only if you have a named instance, remove the -s if no instance. sqlservr -m -T4022 -T3659 -s"SQL2019" -q"SQL_Latin1_General_CP1_CI_AS" or sqlservr -m -T4022 -T3659 -q"SQL_Latin1_General_CP1_CI_AS" When this does not work, I have a set of 6 SQL scripts to tear the database apart in a complex method to get them operational. Does anybody have any idea why the hit and miss on the command? Or a better method / way to fully change the DB collation?
Major increase in transaction log backup size after upgrading to SQL Server 2022
Has anyone experienced a major increase in transaction log backup size after upgrading to SQL Server 2022? I recently upgraded one of our SQL Server environments from SQL Server 2019 to SQL Server 2022 (migrated databases to new SQL Server 2022 instances). After the upgrade, I noticed that transaction log backup sizes increased by 3× to 5×, even though: No application changes were made Workload and data change volume should be roughly the same Backup schedule remained the same (log backups every 30 minutes) Backup compression is default (same as before) The database is part of an Always On Availability Group running in synchronous commit mode Metrics I obeserved: Transaction log backup file size — increased 3× to 7× Log Write Throughput/sec — more than doubled Write Log Throughput — increased after upgrade Background Write Pages/sec — went up as well Log Bytes Flushed/sec Bytes Sent to Replica/sec — increased post-upgrade Backup/Restore Throughput/sec — increased from ~13 MB/sec → ~38 MB/sec Bytes Sent to Replica/sec (Always On counter) — increased New hardware is used — previous physical disk sector size was 4K, now it's 512 bytes Same Amount of RAM and CPU
Struggling with AI/ML and Python installation on MSSQL2025 GA
I swear that i did not have any issues installing AI/ML on CTP2.1, don't believe i tried it on RC0 or RC1, but gosh is installing python, R difficult on GA! wow ! Can Microsoft or some good soul please share exact steps on installing AI/ML on 2025GA w/ Python 3.10 and also please share all of the exact versions needed and the icals (permission setups), Also I'm confused with this virtual account vs domain account setups. Also can i use Python 3.13 or 3.14 ? or am i locked into 3.10 only ? Does any one have the exact steps on Windows 11 Pro for a SQL Server 2025 Enterprise Development environment ? I see this article but its so confusing : https://learn.microsoft.com/en-us/sql/machine-learning/install/sql-machine-learning-services-windows-install-sql-2022?view=sql-server-ver17&viewFallbackFrom=sql-server-ver15Determine a Value from a customized field in a select statement.
I am new. I am looking to determine the value of a customized field based on the value of a previous customized field. Here is what I have so far: select c.*, CASE WHEN c.[Case End Date] is null Then DATEDIFF(day,c.[Case Start Date], getdate()-1) ELSE DATEDIFF(day,c.[Case Start Date], c.[Case End Date]) END as [Days Open], CASE WHEN [DAYS OPEN] > 60 THEN 1 ELSE 0 END AS [60DAYSORMORE] From d_case as c The issue I have is that the system will not recognize my [Days Open] as a field. Msg 207, Level 16, State 1, Line 9 Invalid column name 'DAYS OPEN'. How can I make this work in Microsoft SQL Server Management Studio?I need to find a string in a database without knowing table or field
I have a database that contains approximately 130 tables. It's tied to a proprietary application, and I have no way to find its structure except by reverse engineering. But I only need to find the table that contains one particular field in the application's UI, so I thought I'd take a shortcut: use Windows Explorer to search the Microsoft SQL Server directory (and children) for a file that contains a string that I know is in the database. I did this, and got zero matches. I checked how SQL Server stores CHAR and VARCHAR fields. I found that it stores them in UTF-8 encoding. OK, I thought, perhaps Windows Explorer can't find strings encoded in UTF-8. Or perhaps it's programmed to ignore files in the SQL Server folder, like it ignores files in Git repositories. So I tried searching for the string with Notepad++'s Find in Files function. And again, found nothing. What is going on here? Is there any way I can search the raw database files without using SQL Server itself? Alternatively, is there some way I can search an entire database for a string without knowing what column or table it is in?Exporting a database: "Choose a data source." What???
I'm trying to export a SQL Server database, and things aren't going well. I hope someone can help. First, the problem I've solved. I mention it because it may be a clue to what went wrong next. I started SSMS (version 21.5.14+6.36429.23, if that matters), right clicked the database I want to export, and selected Tasks > Export Data. Whoops... Export Data was disabled. I researched this and learned that I must need to install the Import/Export Wizard. Which made no sense, because Import was enabled, and I have imported a database before. (If I hadn't, I'd have none to export!) I tried to (re)install the Wizard, and that fixed the problem, although I still don't understand how it could have. So, I clicked Export Data and got a Welcome screen. I clicked Next and got a screen titled Choose a Data Source. This is incomprehensible to me. I'm running the SQL Server Import/Export Wizard. I got there by right-clicking a particular database in a particular server. The only possible data source is that database. But the Wizard wasn't happy with that, and offered me a dropdown list of 13 options that meant nothing to me. I figured I couldn't go wrong with the default, but I did. The default was "Net Framework Data Provider for Odbc." When I clicked Next, I got an error box that said, "The operation could not be completed. / The ConnectionString property has not been initialized. (System.Data)" I could look up the meaning of the message, but I'm not sure that's what I want to know. Or I could look up the meanings of all 13 options in the dropdown and try to figure out which one to use to export a database, but I've got other things I need to do today. I came here.Failure to run query
Hi, ALL, First I believe that this question is more suited for a C++ devs,, but I can't find it. Sorry. I'm trying to run following query: query1= L"SELECT name FROM sys.key_constraints WHERE type = 'PK' AND parent_object_id = OBJECT_ID(?.?.?);"; with the code below: cbLen[0] = cbLen[1] = cbLen[2] = SQL_NTS; ret = SQLAllocHandle( SQL_HANDLE_STMT, m_hdbc, &m_hstmt ); ret = SQLPrepare( m_hstmt, qry.get(), SQL_NTS ); ret = SQLBindParameter( m_hstmt, 1, SQL_PARAM_INPUT, SQL_C_WCHAR, SQL_WCHAR, m_maxIdLen, 0, catalog.get(), 0, &cbLen[0] ); ret = SQLBindParameter( m_hstmt, 2, SQL_PARAM_INPUT, SQL_C_WCHAR, SQL_WCHAR, m_maxIdLen, 0, schema.get(), 0, &cbLen[1] ); ret = SQLBindParameter( m_hstmt, 3, SQL_PARAM_INPUT, SQL_C_WCHAR, SQL_WCHAR, m_maxIdLen, 0, table.get(), 0, &cbLen[2] ); ret = SQLExecute( m_hstmt ); that code errors out with the error message "SQL syntax error near p2". Am I not allowed to arametrize this query like that? Thank you.
