I named the Excel File "Rows to add and " What we plan to do in the procedure is create new records in the “Emp” table and update existing records in the same table.
From a new SSIS project in SQL Server Data Tools (SSDS), add a new Data Flow Task to the Control Flow tab and rename “Insert and Update Records.” Next we are going to create a Data Flow to query both the Excel Source File and the database table via OLE DB Source. We can then create a left outer join in order to determine which rows are new and which need only updating.
Starting with SQL Server 2005, SQL Server allows specifying ordering columns from tables in the FROM clause that are not specified in the SELECT list.
The column names referenced in the ORDER BY clause must correspond to either a column in the SELECT list or a column of the table in the FROM clause without any ambiguities.
For example, the Although the view definition contains an ORDER BY clause, that ORDER BY clause is used only to determine the rows returned by the TOP clause.
There are lots of ways to select a random record or row from a database table.
Drag the Excel Source to the Data Flow window and configure it to access your Excel Source file.
SQL cannot execute the variety of methods that might be locally available to your application.
LINQ to SQL tries to convert these local methods to equivalent operations and functions that are available inside the SQL environment. NET Framework built-in types have direct translations to SQL commands.
Here are some example SQL statements that don't require additional application logic, but each database server requires different SQL syntax.
LINQ to SQL translates the queries you write into parameterized SQL queries (in text form) and sends them to the SQL server for processing.