Availability Group (AG)

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A Step by Step Guide to the Availability Group (AG) Listener

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Availability databases hosted on SQL Server Always On Availability Groups (AG) can be connected using a unique Virtual Network Name (VNN), called the Availability Group Listener. When an Availability Group is enabled, clients can connect to databases in both primary and secondary replicas without explicitly specifying the SQL Server instance name. You don’t even need […]

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2019-07-02

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The Decoded Value

In SQL Server 2025, what is returned from this code:

DECLARE @message VARCHAR(50) = 'Hello SQL Server 2025!';
DECLARE @encoded VARCHAR(MAX);

SET @encoded = BASE64_ENCODE(CAST(@message AS VARBINARY(1000)));
SELECT BASE64_DECODE(@encoded) 

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