Peer over my shoulder in this free SQL Server tutorial. He/him. Lets do an exploration of the Votes table in the Stack Overflow database, specifically the 2018-06 ~300GB version where the Votes table has 150,784,380 rows taking up ~5.3GB of space. Common sp_BlitzFirst Parameters @ExpertMode = 1 doesnt do more in-depth checks, but DOES return a whole lot more data, including sections on wait stats, file stats, and Perfmon counters. Im nervous, though. He/him. July 23, 2013 5:18 am. Brent Ozar % COMPLETE $89/year Fundamentals of Index Tuning Available until . Calls sp_BlitzWho at the start & end too so you can see which queries were running at those times. However, in the words of a timeless philosopher, aint nobody got time for that. Common sp_BlitzIndex Parameters @GetAllDatabases = 1 runs index tests across all of the databases on the server instead of just your current database context. This can lead to blocking problems that keep you from scaling SQL Server. Peer over my shoulder in this free SQL Server tutorial. SQL Server database administrators need to be able to quickly find out what queries and stored procedures are running slow. Free video training class before you troubleshoot blocking and deadlocks, start with How to Think Like the Engine. How to use sp_Blitz, sp_BlitzCache, sp_BlitzIndex, and more. In a perfect world, you want to exactly simulate the kinds of queries that the end users will be throwing at your SQL Server. He/him. Im based out of Las Vegas. Peer over my shoulder in this free SQL Server tutorial. Almost all of the tools in this post, except the last one, are designed to help you run queries, but they dont include the queries. Normally when you run a DELETE statement in a database, the datas gone. The short answer from his post is If you have a transaction log that is not growing, and youre taking regular log backups, but the log_reuse_wait_desc remains LOG_BACKUP, this is because zero VLFs were cleared when the previous log backup was I make Microsoft SQL Server go faster. Locking and Blocking in SQL Server SQL Server uses pessimistic locking by default your queries are naturally defensive. Im nervous, though. Microsoft includes sp_who and sp_who2 in SQL Server 2005 and 2008, but theres a much better tool, and its completely free. The Hard Truth About Patching Availability Groups If youre used to only patching your servers every couple of months, buckle up: things get much more challenging with AGs. When you run a SELECT COUNT(*), the speed of the results depends a lot on the structure & settings of the database. I know, management wants you to stay on an older build, and the vendor says theyll only support older versions, but nows your chance to make your case for a newer version and Im gonna help you do it. Say we have a stored procedure that queries the Stack Overflow Users table to find people in a given location. Make Microsoft SQL Server queries go faster just by tuning indexes. Im based out of Las Vegas. Includes instructions on how to do your own hands-on labs. Im based out of Las Vegas. How I Use the First Responder Kit Available until . Wait! Consulting. Since Im a big fan of Brent Ozars SQL Server First Responder Kit, and Ive found myself in many situations where I would have liked a quick way to easily export to Excel SQL Server database administrators need to be able to quickly find out what queries and stored procedures are running slow. That gives you the top 10 most duplicated queries in cache, plus for each one, 10 sample texts, plans, and a more-info query for sp_BlitzCache to let you slice & dice them by reads, CPU, etc. One thing I need you to understand first: you have to provide the database and the queries. I love teaching, travel, cars, and laughing. Lets say youve got a query, and the point of that query is to take your largest customer/user/whatever and compare their activity to smaller whatevers. Tim neat idea! Download it in our free First Responder Kit. He/him. Are you sure youre using the right version? With the soft delete design pattern, you add a bit column like IsDeleted, IsActive, or IsArchived to the table, and instead of deleting rows, you flip the bit column. Common sp_BlitzFirst Parameters @ExpertMode = 1 doesnt do more in-depth checks, but DOES return a whole lot more data, including sections on wait stats, file stats, and Perfmon counters. How I Use the First Responder Kit Available until . So I googled to find a script and found this one by Brent Ozar. How I Use the First Responder Kit Available until . After you finish the Fundamentals, watch my toughest 3-day Mastering classes. One thing I need you to understand first: you have to provide the database and the queries. Im going to measure each method 3 ways: What do you do? Normally when you run a DELETE statement in a database, the datas gone. I make Microsoft SQL Server go faster. What do you do when SQL Server is unusually slow? Download it in our free First Responder Kit. The thought of rapidly flipping trace flags on/off, even just at the logon level, makes my stomach feel the same way I felt when I picked up a javelin for the first time. Weve already covered how to log activity using sp_WhoIsActive, but I wanted to share how Ive seen it done in the wild.The difference between the two methods is that this version logs everything to the same table and is for continuous activity logging (scheduled job), whereas the other version uses a new table each time it logs activity and is for when you are What if the same thing happens, but youre on The Brent Ozar Unlimited blog covers SQL server news and free SQL Server training tips about clustering, AlwaysOn, performance tuning, T-SQL, and more. Load testing real, serious load testing is hard. Includes instructions on how to do your own hands-on labs. Free video: Watch Brent Tune Queries ever wonder how somebody else does it? Common sp_BlitzFirst Parameters @ExpertMode = 1 doesnt do more in-depth checks, but DOES return a whole lot more data, including sections on wait stats, file stats, and Perfmon counters. Microsoft includes sp_who and sp_who2 in SQL Server 2005 and 2008, but theres a much better tool, and its completely free. He/him. What if the same thing happens, but youre on April 18, 2018 3:56 pm. Load testing real, serious load testing is hard. Disaster strikes your SQL Server: queries are stalled, applications are down, customers are calling in like crazy, and your boss is in a panic. Weve already covered how to log activity using sp_WhoIsActive, but I wanted to share how Ive seen it done in the wild.The difference between the two methods is that this version logs everything to the same table and is for continuous activity logging (scheduled job), whereas the other version uses a new table each time it logs activity and is for when you are What do you do? Consulting. Are you sure youre using the right version? Common sp_BlitzIndex Parameters @GetAllDatabases = 1 runs index tests across all of the databases on the server instead of just your current database context. Free video training class before you troubleshoot blocking and deadlocks, start with How to Think Like the Engine. Note that the Total numbers like Total_Reads and Total_CPU_ms are for ALL of the different executions of the query text, not just the one line youre looking at. Brent Ozar has some advice on when to use common table expressions versus temporary tables Lets do an exploration of the Votes table in the Stack Overflow database, specifically the 2018-06 ~300GB version where the Votes table has 150,784,380 rows taking up ~5.3GB of space. Watch Brent Streaming Live; My Videos and Downloads PSBlitz is a PowerShell script that outputs SQL Server health and performance diagnostics data to Excel and saves execution plans and deadlock graphs as .sqlplan and .xdl files.. Introduction. However, in the words of a timeless philosopher, aint nobody got time for that. Our customers are mainly banks and they are not keen to install Stored Procedure. PSBlitz is a PowerShell script that outputs SQL Server health and performance diagnostics data to Excel and saves execution plans and deadlock graphs as .sqlplan and .xdl files.. Introduction. Watch Brent Streaming Live; My Videos and Downloads Im based out of Las Vegas. Say we have a stored procedure that queries the Stack Overflow Users table to find people in a given location. April 18, 2018 3:56 pm. My free First Responder Kit (zip) is packed with scripts, worksheets, and checklists like: sp_Blitz, sp_BlitzIndex, sp_BlitzCache free health check scripts; SQL Server Setup Checklist with the common questions I get about configs; High Availability and Disaster Recovery Planning Worksheet communicating your RPO and RTO clearly I love teaching, travel, cars, and laughing. So you wanna run a load test against SQL Server. In a perfect world, you want to exactly simulate the kinds of queries that the end users will be throwing at your SQL Server. In my work, we found a strange behavior when we changed the value of Cost to a greater one (5 -> 150), and the Execution Plan determined that only indexes were involved in the execution (mix between Clustered and Nonclustered Indexes & Clustered Columnstore Indexes) even when the tables using the Clustered Columnstore Indexes had 1.5-2 billion rows (DWH I know, management wants you to stay on an older build, and the vendor says theyll only support older versions, but nows your chance to make your case for a newer version and Im gonna help you do it. Not even the First Responder Kit; PSBlitz is a PowerShell script that outputs SQL Server health and performance diagnostics data to Excel and saves execution plans and deadlock graphs as .sqlplan and .xdl files.. Introduction. Is there a portable version of the First Responder Kit? Free video: Watch Brent Tune Queries ever wonder how somebody else does it? Are you sure youre using the right version? Not even the First Responder Kit; If SQL Server doesnt balance that work evenly across multiple threads, you can experience the CXCONSUMER and/or CXPACKET wait types. If youve got more than 50 databases on the server, this only works if you also pass in @BringThePain = 1, because its gonna be slow. It has been added to StackExchange and refined a [] Reply; chary. Lets do an exploration of the Votes table in the Stack Overflow database, specifically the 2018-06 ~300GB version where the Votes table has 150,784,380 rows taking up ~5.3GB of space. Peer over my shoulder in this free SQL Server tutorial. Peer over my shoulder in this free SQL Server tutorial. Say we have a stored procedure that queries the Stack Overflow Users table to find people in a given location. April 18, 2018 3:56 pm. He/him. I make Microsoft SQL Server go faster. SQL Server database administrators need to be able to quickly find out what queries and stored procedures are running slow. Download it in our free First Responder Kit. Since Im a big fan of Brent Ozars SQL Server First Responder Kit, and Ive found myself in many situations where I would have liked a quick way to easily export to Excel Peer over my shoulder in this free SQL Server tutorial. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; Production Database Administration; Professional Development; Brent Ozar. Brent Ozar % COMPLETE $89/year Fundamentals of Index Tuning Available until . July 23, 2013 5:18 am. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; Production Database Administration; Professional Development; Im Brent Ozar. Lets say youve got a query, and the point of that query is to take your largest customer/user/whatever and compare their activity to smaller whatevers. The Brent Ozar Unlimited blog covers SQL server news and free SQL Server training tips about clustering, AlwaysOn, performance tuning, T-SQL, and more. After you finish the Fundamentals, watch my toughest 3-day Mastering classes. I make Microsoft SQL Server go faster. Almost all of the tools in this post, except the last one, are designed to help you run queries, but they dont include the queries. The Brent Ozar Unlimited blog covers SQL server news and free SQL Server training tips about clustering, AlwaysOn, performance tuning, T-SQL, and more. Calls sp_BlitzWho at the start & end too so you can see which queries were running at those times. There are many missing tables especially linked/lookup tables. My free First Responder Kit (zip) is packed with scripts, worksheets, and checklists like: sp_Blitz, sp_BlitzIndex, sp_BlitzCache free health check scripts; SQL Server Setup Checklist with the common questions I get about configs; High Availability and Disaster Recovery Planning Worksheet communicating your RPO and RTO clearly Normally when you run a DELETE statement in a database, the datas gone. Locking and Blocking in SQL Server SQL Server uses pessimistic locking by default your queries are naturally defensive. This can lead to blocking problems that keep you from scaling SQL Server. Make Microsoft SQL Server queries go faster just by tuning indexes. Watch Brent Streaming Live; My Videos and Downloads It has been added to StackExchange and refined a [] Reply; chary. I make Microsoft SQL Server go faster. AlwaysOn Availability Groups FAQ Brent gives you a quiz about AlwaysOn AGs to see if youre a good fit, and then answers a lot of your common questions. Brent Ozar has some advice on when to use common table expressions versus temporary tables Note that the Total numbers like Total_Reads and Total_CPU_ms are for ALL of the different executions of the query text, not just the one line youre looking at. So I googled to find a script and found this one by Brent Ozar. Im based out of Las Vegas. I make Microsoft SQL Server go faster. Brent Ozar has some advice on when to use common table expressions versus temporary tables Wait! Weve already covered how to log activity using sp_WhoIsActive, but I wanted to share how Ive seen it done in the wild.The difference between the two methods is that this version logs everything to the same table and is for continuous activity logging (scheduled job), whereas the other version uses a new table each time it logs activity and is for when you are First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; Production Database Administration; Professional Development; Im Brent Ozar. When you run a SELECT COUNT(*), the speed of the results depends a lot on the structure & settings of the database. Common sp_BlitzIndex Parameters @GetAllDatabases = 1 runs index tests across all of the databases on the server instead of just your current database context. There are many missing tables especially linked/lookup tables. July 23, 2013 5:18 am. Lets say youve got a query, and the point of that query is to take your largest customer/user/whatever and compare their activity to smaller whatevers. Im nervous, though. Hi Brent, I know this is an old post, but I have a quick question that I wanted to ask to clarify my understanding of Trace flag 1117. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; @Brent Ozar. Includes instructions on how to do your own hands-on labs. However, in the words of a timeless philosopher, aint nobody got time for that. Wait! AlwaysOn Availability Groups FAQ Brent gives you a quiz about AlwaysOn AGs to see if youre a good fit, and then answers a lot of your common questions. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; Production Database Administration; Professional Development; Im Brent Ozar. When you run a SELECT COUNT(*), the speed of the results depends a lot on the structure & settings of the database. That gives you the top 10 most duplicated queries in cache, plus for each one, 10 sample texts, plans, and a more-info query for sp_BlitzCache to let you slice & dice them by reads, CPU, etc. If SQL Server doesnt balance that work evenly across multiple threads, you can experience the CXCONSUMER and/or CXPACKET wait types. My free First Responder Kit (zip) is packed with scripts, worksheets, and checklists like: sp_Blitz, sp_BlitzIndex, sp_BlitzCache free health check scripts; SQL Server Setup Checklist with the common questions I get about configs; High Availability and Disaster Recovery Planning Worksheet communicating your RPO and RTO clearly Note that the Total numbers like Total_Reads and Total_CPU_ms are for ALL of the different executions of the query text, not just the one line youre looking at. With the soft delete design pattern, you add a bit column like IsDeleted, IsActive, or IsArchived to the table, and instead of deleting rows, you flip the bit column. Our customers are mainly banks and they are not keen to install Stored Procedure. The short answer from his post is If you have a transaction log that is not growing, and youre taking regular log backups, but the log_reuse_wait_desc remains LOG_BACKUP, this is because zero VLFs were cleared when the previous log backup was Free video training class before you troubleshoot blocking and deadlocks, start with How to Think Like the Engine. Hi Wayne, Paul Randal has a great post that goes into details about the Log_Backup description. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Changed the first two or three CTEs into temporary tables, seeing as they were referenced multiple times, and voila the query completed in just over a minute. Download it in our free First Responder Kit. I know, management wants you to stay on an older build, and the vendor says theyll only support older versions, but nows your chance to make your case for a newer version and Im gonna help you do it. Locking and Blocking in SQL Server SQL Server uses pessimistic locking by default your queries are naturally defensive. Im going to measure each method 3 ways: Im going to measure each method 3 ways: Make Microsoft SQL Server queries go faster just by tuning indexes. What if the same thing happens, but youre on Our customers are mainly banks and they are not keen to install Stored Procedure. Hi Brent, I know this is an old post, but I have a quick question that I wanted to ask to clarify my understanding of Trace flag 1117. I love teaching, travel, cars, and laughing. I love teaching, travel, cars, and laughing. Performance Tuning; Remote DBA Services; Upgrades and Migrations; Consultant Toolkit; Training. Is there a portable version of the First Responder Kit? It has been added to StackExchange and refined a [] Reply; chary. Since Im a big fan of Brent Ozars SQL Server First Responder Kit, and Ive found myself in many situations where I would have liked a quick way to easily export to Excel What do you do when SQL Server is unusually slow? The short answer from his post is If you have a transaction log that is not growing, and youre taking regular log backups, but the log_reuse_wait_desc remains LOG_BACKUP, this is because zero VLFs were cleared when the previous log backup was How to use sp_Blitz, sp_BlitzCache, sp_BlitzIndex, and more. So you wanna run a load test against SQL Server. If youve got more than 50 databases on the server, this only works if you also pass in @BringThePain = 1, because its gonna be slow. There are many missing tables especially linked/lookup tables. Almost all of the tools in this post, except the last one, are designed to help you run queries, but they dont include the queries. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Changed the first two or three CTEs into temporary tables, seeing as they were referenced multiple times, and voila the query completed in just over a minute. Hi Wayne, Paul Randal has a great post that goes into details about the Log_Backup description. Microsoft includes sp_who and sp_who2 in SQL Server 2005 and 2008, but theres a much better tool, and its completely free. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; Production Database Administration; Professional Development; Brent Ozar. In my work, we found a strange behavior when we changed the value of Cost to a greater one (5 -> 150), and the Execution Plan determined that only indexes were involved in the execution (mix between Clustered and Nonclustered Indexes & Clustered Columnstore Indexes) even when the tables using the Clustered Columnstore Indexes had 1.5-2 billion rows (DWH First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; @Brent Ozar. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; Production Database Administration; Professional Development; Im Brent Ozar. What do you do when SQL Server is unusually slow? Not even the First Responder Kit; Disaster strikes your SQL Server: queries are stalled, applications are down, customers are calling in like crazy, and your boss is in a panic. One thing I need you to understand first: you have to provide the database and the queries. Load testing real, serious load testing is hard. The thought of rapidly flipping trace flags on/off, even just at the logon level, makes my stomach feel the same way I felt when I picked up a javelin for the first time. Performance Tuning; Remote DBA Services; Upgrades and Migrations; Consultant Toolkit; Training. Is there a portable version of the First Responder Kit? Download it in our free First Responder Kit. That gives you the top 10 most duplicated queries in cache, plus for each one, 10 sample texts, plans, and a more-info query for sp_BlitzCache to let you slice & dice them by reads, CPU, etc. The Hard Truth About Patching Availability Groups If youre used to only patching your servers every couple of months, buckle up: things get much more challenging with AGs. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; Production Database Administration; Professional Development; Im Brent Ozar. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; @Brent Ozar. So you wanna run a load test against SQL Server. How to use sp_Blitz, sp_BlitzCache, sp_BlitzIndex, and more. What do you do? Hi Brent, I know this is an old post, but I have a quick question that I wanted to ask to clarify my understanding of Trace flag 1117. In a perfect world, you want to exactly simulate the kinds of queries that the end users will be throwing at your SQL Server. Before you install that next SQL Server, hold up. Brent Ozar % COMPLETE $89/year Fundamentals of Index Tuning Available until . This can lead to blocking problems that keep you from scaling SQL Server. The Hard Truth About Patching Availability Groups If youre used to only patching your servers every couple of months, buckle up: things get much more challenging with AGs. I love teaching, travel, cars, and laughing. After you finish the Fundamentals, watch my toughest 3-day Mastering classes. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Changed the first two or three CTEs into temporary tables, seeing as they were referenced multiple times, and voila the query completed in just over a minute. Disaster strikes your SQL Server: queries are stalled, applications are down, customers are calling in like crazy, and your boss is in a panic. Consulting. Tim neat idea! Before you install that next SQL Server, hold up. AlwaysOn Availability Groups FAQ Brent gives you a quiz about AlwaysOn AGs to see if youre a good fit, and then answers a lot of your common questions. Hi Wayne, Paul Randal has a great post that goes into details about the Log_Backup description. Performance Tuning; Remote DBA Services; Upgrades and Migrations; Consultant Toolkit; Training. With the soft delete design pattern, you add a bit column like IsDeleted, IsActive, or IsArchived to the table, and instead of deleting rows, you flip the bit column. So I googled to find a script and found this one by Brent Ozar. Im based out of Las Vegas. I love teaching, travel, cars, and laughing. Download it in our free First Responder Kit. The thought of rapidly flipping trace flags on/off, even just at the logon level, makes my stomach feel the same way I felt when I picked up a javelin for the first time. Calls sp_BlitzWho at the start & end too so you can see which queries were running at those times. In my work, we found a strange behavior when we changed the value of Cost to a greater one (5 -> 150), and the Execution Plan determined that only indexes were involved in the execution (mix between Clustered and Nonclustered Indexes & Clustered Columnstore Indexes) even when the tables using the Clustered Columnstore Indexes had 1.5-2 billion rows (DWH Tim neat idea! Before you install that next SQL Server, hold up. If youve got more than 50 databases on the server, this only works if you also pass in @BringThePain = 1, because its gonna be slow. Free video: Watch Brent Tune Queries ever wonder how somebody else does it? First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; Production Database Administration; Professional Development; Brent Ozar. First Responder Kit; High Availability; Humor; Locking, Blocking, and Isolation Levels; Parameter Sniffing; Production Database Administration; Professional Development; Im Brent Ozar. If SQL Server doesnt balance that work evenly across multiple threads, you can experience the CXCONSUMER and/or CXPACKET wait types.