How to Remove Table Partitioning in SQL Server In this article we will see how we can remove partitions from a table in a database in SQL server. In my previous post i had demonstrated how we can partition a table via T-SQL. Lets now remove the partitions and merge the data in a si...
When working with SQL queries, it’s common to encounter NULL values in result sets, especially when dealing with data coming fromjoinsand aggregations or involving missing information. If incorrectly handled, NULL values can lead to unexpected behavior in calculations or reports. If the corresponding...
It’s a good idea to check the records you’re deleting first, by running a SELECT statement using this criteria. For the purposes of these examples, I’ll check the COUNT of the records about to be deleted, by replacing the DELETE with a SELECT COUNT(*). SELECTCOUNT(*)FROMcustomeraWH...
In this post we look at ways to remove all duplicate rows except one in an SQL database. For all examples in this article, we'll be using the following MySQL "user" table: +---+---+ | id | name | +
MySQL installed and secured on the server, as outlined inHow To Install MySQL on Ubuntu 20.04. This guide was verified with a non-root MySQL user, created using the process described inStep 3. Note: Please note that many RDBMSs use their own unique implementations of SQL. Although the comma...
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New method: DROP IF EXISTS supported in SQL Server 2016 and above version To drop a database object in SQL Server 2016 and above we need to execute a simple statement. Drop table if exists: We can write a statement as below in SQL Server 2016 to remove a stored table if it exists. ...
How to remove NULL in column how to remove numbers in the given string HOW TO REMOVE SPACE FROM MIDDLE OF STRING ? how to remove special characters in a particular column How to remove Table Spool(Eager Spool) from query plan of a function How to remove those columns with all NULL values...
How to Concatenate Two Columns in SQL – A Detailed Guide SQL String Functions: A Complete Overview 15 SQL Server Practice Exercises with Solutions See also: How to Remove Leading and Trailing Spaces in T-SQL How to Change Date and Time Formats in T-SQL How to Convert Time Data from Strin...
To view the result, run: SELECT*FROMEmployee; When Are SQL NULL Values Useful? A NULL value can be used in various situations in SQL: When the data is unavailable or unknown at the time of data entry. When the data doesn't apply to the entity in question. For example, in a survey...