Notice how we used variable in SQL to make it dynamic. To use EXEC AT you must turn on RPC OUT option. So table must exists when you do that way. However you can always do INSERT INTO MyTable EXEC(…) AT LINKEDSRV. JOIN OPENQUERY(ls_json,'select * from value') b ON a.id=b.id SELECT a.* FROM OPENQUERY(ls_json,'select * from value') a Also you cannot perform JOIN like below in EXEC AT ĭisadvantage of EXEC AT is you cannot do SELECT INTO like OPENQUERY. With SQL 2005 and later you can use EXEC(your_sql) AT your_linked_server syntax. The biggest limitation of OPENQUERY is it doesn't allow you to use variables inside SQL so often we have to use unpleasant looking dynamic SQL (Lots of tick, tick …. It allows us to send pass-through query at remote server. So far we have seen examples of using OPENQUERY. OPENQUERY vs EXEC (handling larger SQL text) Click on TCP and enter port number under specified local port as 5000 (use different one if you changed Default port) > Click Next.Under Inbound Rules > Right click and click > Click Next.Search for Windows Firewall Advanced Security in start menu.Use below method if you choose to customize your rule (for advanced users). Here is another way to add / edit Inbound Traffic rule in windows firewall. This will create Firewall rule to all Inbound Traffic on Port 5000 (Unless you changed it). Go to Firewall Tab and click Add Firewall Rule button like below.Search for gateway in start menu and open ZappySys Data Gateway.If you are using newer version of ZappySys Data Gateway then adding firewall rule is just a single click. In such case perform following steps to allow other machines to connect to Gateway. On most computers firewall settings wont allow outside traffic to ZappySys Data Gateway. In such case you may have to perform additional Firewall configurations. However there will be a case when ZappySys ODBC PowerPack is installed on a different machine than SQL Server. So far we have assumed that Gateway is running on the same machine as SQL Server. SELECT * FROM OPENQUERY(, 'SELECT * FROM Products') Then click on Security option and configure username we created in ZappySys Data Gateway in one of the previous steps:įinally, open a new query and execute a query we saved in one of the previous steps: Go to SQL Server Management Studio and configure it in a similar way: To read the data in SQL Server the first thing you have to do is create a Linked Server. Read data in SQL Server from the ZappySys Data Gateway data source In a few clicks we configured the call to JSON API using ZappySys JSON Connector. Hit Preview tab, and use similar settings to preview data:Ĭlick OK to finish creating the data source Once you configured a data source, you can preview data. Click Add, give data source a name (Copy this name somewhere, we will need it later) and then select Native - ZappySys JSON Driver. We will use these details later when we create linked server: Click Add we will give it a name tdsuser and enter password you like to give. Go to Users Tab to add our first Gateway user. Search for gateway in start menu and Open ZappySys Data Gateway:
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