Or do something else programmatically. Checking if an index exists is a pretty frequent task. But there’s no simple function to test if an index exists in SQL Server. Here’s what I’ll show you in this post: Example code to check if an index exists using OBJECT_ID. The code is si...
The LAG function allows to access data from the previous row in the same result set without use of any SQL joins. You can see in below example, using LAG function we found previous order date. Script to find previous order date using LAG() function: 1 2 3 4 5 6 SELECT...
Ideally, there should be a function that takes datetime expression as a parameter and returns the date in the desired format. Instead, we had to call “Datename” function four times. This is where user-defined functions come handy. SQL Server allows users to create custom functions according ...
What I’ve done is to create a table-source, using a multi-row VALUES statement. This gives me known input. The second string in the pair is the expected output value, in each case. All I need to do is to check the expected output with what was actually output, and raise an...
6. Key a trace name. Click theEvents Selectiontab, and then click to select theShow all eventscheck box in the lower-right corner. 7. Select the serverevent classesto the trace: a. ExpandCursors, and then click to select the following check boxes: ...
Input-Output configuration issue: If the configuration is changed or interrupted, then corruption in log file arises. A Reliable Solution to Fix SQL Log File Corruption Now that you've understood why the problem happened, next, try to deal with it with ways given below. First, check for the...
Check Using Server Property The Server Property function will return “1”for Windows authentication and “0” for Windows/SQL Authentication (Mixed Mode). It would be nice if these values were consistent from what is stored in the registry. ...
The COALESCE() function takes in at least one value (value_1). It will return the first non-null value in the list, from left to right. For example, it will first check if value_1 is null. If not, then it returns value_1. Otherwise, it checks if value_2 is null. The process...
How to Check Database State? To check the state of a database in SQL Server, you can use the following query: SELECT name, state_desc FROM sys.databases; This query will return a list of all the databases on your SQL Server instance and their current state. The state_desc column will...
Organizations of all types and sizes use SQL Server to support transaction processing, business intelligence and analytics applications. Planning for the worst Like similar database products, such as Oracle Database or IBM's Db2, SQL Server is built on the Structured Query Language (SQL), a stan...