'object' does not contain a definition for 'Text' and no accessible extension method 'Text' accepting a first argument of type 'object' could be found 'sender' parameter not working with switch/case block? 'SQL server Login Failed for User' error specifically when running windows service 'Str...
then the outer query proceeds. If not, the outer query does not execute, and the entire SQL ...
I am very new to SQL. I want to know what happens when i use "IF EXISTS" or "IF NOT EX...
In this tutorial, we’ll explore and understand, with practical examples, the differences between CTEs and subqueries. This tutorial uses the PostgreSQL database for the practical use case examples. In addition, this applies to MySQL and SQL Server. In addition, we’ll illustrate this process us...
Can I use aggregate function within CASE? Can I use if statement in a table valued function? Can I use LEN or DATALENGTH in a WHERE clause? Can I use OUTER JOIN on 2 columns at the same time? Can row_number() work in UNION STATEMENTS ? Can someone explain just exactly why xp_cmdsh...
Let me show you a use case demonstration while running both SQL statements on an Oracle database, where both these statements are valid to run. If we will run it in other database systems like SQL Server, then you will get the error while running SQL SELECT UNIQUE whereas you will get ...
cases, the default collation is set to "utf8_general_ci" for MySQL 5.5 and earlier, and "utf8mb4_0900_ai_ci" for MySQL 5.6 and later. However, this can be changed during installation or configured on a per-database or per-table basis using the "COLLATE" keyword in SQL statements....
case. If your data needs are changing rapidly, you needhigh throughput to handle viral growth, or your data is growing fast and you need to be able to scale out quickly and efficiently, maybe NoSQL is for you. But if the data you have isn’t changing in structure and you’re ...
No. There is also a default statement in the if-else structure. That is, else statement. Conceptually, else statement in if-else structure do the same work as default statement do in switch structure. i.e. both statements will be executed in the case of all the remaining possibilities or...
I'm learning about handling fci issues and stuck at 2 concepts to recover from cluster failure: Forced quorum Force start without quorum What is the factor to decide whether to use which of the above? For example does forced quorum also mean manual forced failover? sq...