Any column that is not modified retains its original values, except in certain queries using the CASE expression. See CASE expression for a description of CASE expressions.. To add, drop, or modify a ...

I ran this query, and lo! My table in SQL Server was updated: There are some interesting things to note here though. First, for each row in my Excel table, and each time an UPDATE statement was run, ...

SQL Server 2016 lets you treat JSON objects like rows in a table, allowing you to use data from AJAX queries in joins, updates and any other SQL statement you can think of. SQL Server 2016 provides ...

It is a common requirement in sql server development to update top n records in sql server.in this blog we will see two approaches to accomplish the same.1) using update with top update top (100) ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

In SQL we support non-standard clause called ON CONFLICT / OR. It is not a separate clause which can appear in INSERT/UPDATE statements or as a column option in CREATE TABLE statements. See examples ...

Here, the query was executed with a filter on the primary key. Now, let us say, we have another table: EmployeeDetails in the database with properties: EmployeeId (FK, Employee.Id), Address, ...

It is also useful if you are running SQL statements from an SQL application in another SQL-based database. The second form uses a LIKE clause to create a table that has the same column names and ...