All versions of Microsoft SQL Server (not MySQL). Please also add a version-specific tag like sql-server-2016 if that is relevant to the question.

learn more… | top users | synonyms (2)

30
votes
2answers
30k views

What is the actual behavior of compatibility level 80?

Could somebody provide me with a better insight about the compatibility mode feature? It is behaving different than I expected. As far as I understand compatibility modes, it is about the ...
0
votes
2answers
1k views

SQL Server AD groups membership seems cached - how to flush to test? [duplicate]

I am configuring a new, fully AD group based security scheme on an existing SQL Server 2008. When I change the group to which I belong to test my configs, it seems that there is quite a delay between ...
2
votes
1answer
742 views

Will certain Database Compatibility cause performance degradation?

I'm running a variety of SQL Servers from 2005 to 2012 across several machines. I have many of these databases running in SQL Server 2000 compatibility mode. Will using an older compatibility in a ...
4
votes
2answers
1k views

SQL server agent SSIS error

I get the following error when I execute my package as a SQL server agent job. It is an SSIS 2008 package running on a SQL Server 2008 instance. My package security is DontSaveSensitive. I don't ...
2
votes
2answers
2k views

How do I interpret the log when I run DBCC TRACEON (3502, 3504, 3605, -1)

I have been using DBCC Traceon (3502, 3504, 3605, -1) because it was recommended in a blog for discovering performance issues related to I/O. I'm running MS SQL Server 2008 R2 SP1 Results in my SQL ...
17
votes
1answer
29k views

SIMPLE or FULL recovery model for databases?

When should I use the full recovery model and when should I use the simple recovery model for databases? I always used the full recovery model because it is the default, but today i encountered this ...
2
votes
2answers
228 views

Using Change Data Capture with a frequently changing schema

We are following an agile development process, which in this case means that we frequently make changes to the database schema, e.g. adding new columns, moving data to other columns, etc. Is there a ...
0
votes
0answers
85 views

Windows Server failover cluster [closed]

I have 5pcs. IBM System x3650(7979 - ex. ESX/VMWare, planned EOL) now with baremetal Win2012 DataCenter, every machine has the same HW and SW (inc policy). I want to create two clusters (MS SQL), for ...
1
vote
1answer
1k views

Querying Change Data Capture data

I have Change Data Capture enabled and working fine. The question that I have is how do I query the data to show users what changes occurred.
4
votes
2answers
3k views

Issue importing large file into SQL server

I am trying to import a 4gb csv file into a new table in sql server using the wizard. And when I do I get the errors below. I also included the 2nd row of the file I am trying to import without the ...
2
votes
2answers
2k views

Databases outside of AlwaysOn availability group stuck in RESTORING status [closed]

I am testing the AlwaysOn feature of SQL Server 2012. I have 2 servers set up and can successfully create availability groups and fail them over between servers. However, any databases that DO NOT ...
9
votes
3answers
4k views

Get transactions that failed or were never committed

Is there anywhere I can look to find failed transactions in SQL server 2012?
4
votes
1answer
119 views

What is the difference between these two index declarations and do I need both?

I was examining a script with 'Display Estimated Execution Plan' and it made several recommendations for indexes to add to the database. I added them and the script did indeed run much faster. Now ...
0
votes
2answers
3k views

SQL Server to Oracle export using Microsoft OLEDB Provider for Oracle

I am trying to Export Data from SQL Server to Oracle using the "Microsoft OLEDB Provider for Oracle". I am using "Export Data..." option from Task menu. I get to connect to the source database (SQL ...
3
votes
1answer
301 views

Deploying database changes in high availability environment

We are currently looking at our deploy process, which consists of an application tier and data tier for a web solution. We'd like to develop a deployment strategy that does not require downtime for ...
2
votes
1answer
2k views

Do I need to use -f to fix insufficient max server memory settings?

SQL Server Version: SELECT @@VERSION; /* Microsoft SQL Server 2012 - 11.0.2100.60 (X64) Developer Edition (64-bit) on Windows NT 6.1 (Build 7601: Service Pack 1) */ Issue: So, I was playing ...
6
votes
1answer
25k views

How can I get my linked server working using Windows authentication?

I'm trying to get a linked server to ServerA created on another server, ServerB using "Be made using the login's current security context" in a domain environment. I read that I'd need to have SPNs ...
8
votes
2answers
1k views

What can I add to a server to make SQL restores faster?

I have a 2.8TB SQL database (mostly data files, some 400GB of log files) that currently takes around 9 hours to restore. This database is used for testing purposes and must be deleted and restored ...
17
votes
6answers
5k views

Trying to find the last time that a value has changed

I have a table that has an ID, a value, and a date. There are many IDs, Values, and dates in this table. Records are inserted into this table periodically. The ID will always stay the same but ...
2
votes
2answers
385 views

How do I maintain more audit history?

I created a SQL Server audit and when I view the audit logs I only see today’s audit. I am saving it to a file and I want to store audit for one year. Is there a way to store database and server audit ...
3
votes
3answers
5k views

Nonclustered index is faster than clustered index?

Both tables have same structure and 19972 rows in each table. for practicing indexing, i created both tables having same structure and created clustered index on persontb(BusinessEntityID) and ...
4
votes
1answer
2k views

How to take partitions or filegroups out of service

I'm an experienced SQL Server DBA but new to partitioning, and I have a couple of questions. Using SQL Server 2008 R2 Enterprise Edition. I've inherited a large customer metrics database that grows ...
8
votes
1answer
788 views

How to make trigger code execute only for a specific application?

I was wondering if it is possible to enable a trigger just for my current application and not for any sql executed against the table. The situation: There are two applications working on the same ...
1
vote
0answers
19 views

How to take partitions or filegroups out of service [migration] [duplicate]

I'm an experienced SQL Server DBA but new to partitioning, and a had a couple of questions. Using SQL Server 2008 R2 Enterprise Edition. I've inherited a large customer metrics database that grows by ...
7
votes
1answer
1k views

Does Detach/Attach or Offline/Online Clear the Buffer Cache for a Particular Database?

A buddy of mine told me today that instead of bouncing SQL Server, I could simply detach and then re-attach a database and this action would clear the given database's pages and plans from cache. I ...
0
votes
1answer
185 views

Configure SQL Server Database for High Availability & Warehousing

I have 3 DB servers (DB1, DB2 & DB3 - all on Win 2008 R2 with SQL Standard 2008 R2 in the same datacenter). Let's assume AdventureWorks as an example database. My goal: - Setup DB mirroring with ...
-2
votes
1answer
72 views

Select query using a map [closed]

CREATE TABLE grid_rows( [row_id] [int] NOT NULL, [column_id] [smallint] NOT NULL, [column_val] [decimal](18, 6) NULL ) // (row_id, column_id) is a composite primary query For a given ...
7
votes
1answer
1k views

Index usage stats DMV indicates no index activity

I'm trying to obtain information on indexes. According to several websites, the below TSQL query should join information on indexes to the indexes table, returning indexes and related information. ...
2
votes
3answers
454 views

Database design for conditional detail table

I have an expense management system for monthly expenses. Expenses are of two types: one-time monthly expenses, and daily expenses for each day of month. I have created the following tables: ...
0
votes
1answer
635 views

Simplify subqueries with join

I'm trying to create a report in SQL Server Reporting Services that shows the availability of multiple sites. The sites are monitored by a tool that uses a SQL Server 2012 database to store the data. ...
1
vote
1answer
3k views

PowerShell based SQL script execution [closed]

I am new to powershell. Even I dont think I know the basics..But now I am assigned a work to do the execution of sql scripts residing in a remote server. 1) we have to connect to that particular ...
1
vote
0answers
478 views

How to delete orphaned records from sysmergesubscriptions table?

I have some old orphaned records for old subscriptions that I want to delete from the sysmergesubscriptions table. Each time I delete unnecessary records, it show up again after it syncs with any ...
1
vote
2answers
4k views

How to properly clean Merge Replication Setup

What is the proper way to completely clean Merge Replication setup ? I have tried to delete the subscriptions, then delete the publication then "Disable Publishing & Distribution" & delete ...
5
votes
2answers
398 views

Given two known statements, how can I replicate deadlock?

I have two statements (an update against every row in one table (call it table A) and a delete on another table that looks up rows in table A) that I know are causing occasional deadlocks. It seems ...
-1
votes
1answer
489 views

Deleting large chunks of data

create table Grid( grid_id, //other columns ) //grid_id is primary key create table grid_info( grid_id, colulm_id, column_vale ) //grid_id is foreign key ...
2
votes
2answers
3k views

Update performance: clustered versus covering index

I have a simple, 3-column table with about 50 million rows in it. This table gets about 5,000 inserts/updates per second, and perhaps 20 queries per second are executed against the table. The table ...
2
votes
2answers
7k views

How to avoid empty rows in SSIS Excel Destination?

Does anyone have a way to avoid empty rows when using SSIS to export to Excel. Here's a simple example of one data flow task: OLE DB Source: Data Conversion (to handle the annoying UNICODE / ...
5
votes
1answer
4k views

Need to divide single column into multiple columns

My table has data with a single column: 1 2 3 4 5 6 7 8 9 10 And I want output like this: 1 2 3 4 5-first row 6 7 8 9 10 - second row Another has two columns like this: Column 1 ...
0
votes
1answer
251 views

how I can create check sum to validate no changes at int string pairs on table

Business case is. 1)Users print document on paper 2)users carry printed paper to Boss, Boss sing on paper 3)after that users going to administrator to digitally sign that paper. My task is to help ...
6
votes
2answers
868 views

SQL Server Replication Alternative Software

We have used SQL Server Replication for a long time and had some issues with it that sometimes we needed to reinitialize subscriptions to fix some issues & other times we needed to destroy the ...
-2
votes
1answer
425 views

Errors keeping stored procedures through restore from backup [closed]

We are running SQL Server 2008 R2 on two identical servers. One, called LIVE, is our production environment. The other, called QA, is our dev enivornment. In order to check backup integrity and run ...
6
votes
1answer
3k views

How do these snapshot isolation level configurations interact on a SQL Server 2005 instance?

I started troubleshooting a tempdb issue we are having on SQL Server 2005 Enterprise Edition. A developer is getting an error that tempdb is out of space. Technically, the error is: Transaction ...
6
votes
3answers
12k views

Transaction Log maintenance when switching to Simple Recovery

Background: I recently inherited 50+ SQL Servers with 450+ databases. The nightly backups are roughly 8TB and, needless to say, we're using more disk space than we'd like. All of the databases are ...
17
votes
2answers
11k views

Stored procedures vs. inline SQL

I know stored procedures are more efficient through the execution path (than the inline sql in applications). However, when pressed, I'm not super knowlegeable about why. I'd like to know the ...
9
votes
4answers
57k views

High CPU usage on SQL server - Slow queries [closed]

Our MS SQL Server is using about 95% of the CPU-power. After a server (hardware) restart, or a SQL-Service restart, the usage is 0% and slowly increases over the course of 1-3 days. Depending on how ...
3
votes
0answers
44 views

High CPU usage on SQL server - Slow queries [duplicate]

Our MS SQL Server is using about 95% of the CPU-power. After a server (hardware) restart, or a SQL-Service restart, the usage is 0% and slowly increases over the course of 1-3 days. Depending on how ...
2
votes
2answers
4k views

How to find memory usage by table? [duplicate]

I want to discover how much memory is being used by each table. Is this information available in DMVs or elsewhere?
4
votes
2answers
65 views

Weird SQL error

am seeing the error logs below on my SQL server, I'm not sure if they are related to trace flag 3604. I also see something to do with memory dump as well. Please advice. 15:15:53.81 spid594 ...
2
votes
1answer
658 views

Why does selecting top 1 from composite index DESC also used to partition by month not select the top value?

We have very large database table that I need to select the value of the max id. Given the table size SELECT MAX(id) FROM tableA will not perform well enough. Table definition (with columns omitted ...
0
votes
1answer
222 views

SQL Server automatic transaction log truncation

Have looked through msdn but cant find answers to these: Any help much appreciated: In simple recovery mode: Is there any TSQL or alternative functionality that will provide a notification either ...