Updating multiple tables in sql server whos dating who dan cook
On the same “Choose a Destination” Window, click the “Browse” button and the Open file dialog box appears prompting you to find a location for your file. THEN to the right of the file name text box, change the drop down from “Text Files (*.txt)” to “CSV Files (*.csv)” As shown below.While still on the same “Choose a Destination” window, select whether you want the column names to be included in the CSV by selecting the “Column names in first data row” check box. On the “Specify Table Copy or Query” window […] This has to be one of the most common repetitive functions needed for development. The ANSI standard method using the INFORMATION_SCHEMA.The permissions you need to perform this, are merely read permissions on the table. Right-click on the database that contains the table and choose tasks - Export Data…Click next past the intro screen and on the “Choose a Data Source Screen” make sure the database that contains your table is listed in the drop down. On the “Choose a Destination” Window, select “Flat File Destination” in the top drop down box labeled “Destination”.If you don’t have access to log into the box, the quickest way to determine how much CPU SQL Server is using is to run the following DMV: [cc lang=”sql”] DECLARE @ts_now bigint SELECT @ts_now = cpu_ticks / (cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info; SELECT record_id, dateadd(ms, -1 * (@ts_now – [timestamp]), Get Date()) as Event Time, SQLProcess Utilization, System Idle, 100 – System Idle – SQLProcess Utilization as Other Process Utilization FROM ( SELECT record.value(‘(./Record/@id)’, ‘int’) as record_id, record.value(‘(./Record/Scheduler Monitor Event/System Health/System Idle)’, ‘int’) as System Idle, record.value(‘(./Record/Scheduler Monitor Event/System Health/Process Utilization)’, ‘int’) as SQLProcess Utilization, TIMESTAMP FROM ( SELECT timestamp, CONVERT(xml, record) as record FROM sys.dm_os_ring_buffers WHERE ring_buffer_type = N’RING_BUFFER_SCHEDULER_MONITOR’ AND record LIKE ‘%%’) as x ) as y ORDER BY record_id DESC; [/cc] If the Other Process Utilization column has a high value then you know you need to log into the box, open task manager and figure out what is hosing your system.It should be noted that you really should only run SQL Server on SQL Boxes, and if this is your issue, you’ll learn that today. It’s much better to break the queries up so that you do not give the optimizer many different routes to take.First Make sure it’s SQL Server Sometimes there can be other processes (even backups) that are causing the CPU to push over that final edge.
You can run this as an ad-hoc query or you can create a stored procedure and execute it with a scheduled job as needed.
This function returns the last update date in datetime format.
In the next section I will show how to collect data about the outdated statistics into a table.
But, if you ARE like me, and touch a lot of SQL code where there is a huge difference in site performance between a 1 second execution and 20ms execution, then sometimes you don’t have much of an option. It’s getting smarter and smarter at dealing with the majority of queries and keeping them within an even keel baseline. It helps to know the history of your SQL Server performance, but if you don’t there’s still hope using some troubleshooting techniques.
With that said, I will go ahead and use the disclaimer that you SHOULD NOT use hints. You need to know how to write code so that it will not NEED hints. It’s an all hands on deck situation that you need to figure out quick.
But much like the 1950’s people keep their dirty laundry to themselves and outwardly show their best “non hint” selves, this applies as well. But before you go around adding hints everywhere in your system (which is a horrible idea). We’ve all had it happen, alerts start going off that the CPU on the SQL Server is now pegged.