My SQL Server Udemy courses are:70-461, 70-761 Querying Microsoft SQL ... there are advantages to using CONCAT, if you are joining a string ... ... <看更多>

Couple of things. always best to specify the length when converting to varchar. For example varchar(50); concat() will handle nulls as empty ... ... <看更多>

I assume t.Eircode is what concerns you. You can use a CASE statement: SET address4 = concat(address4 ,CASE WHEN NULLIF(address4 ,'') IS NOT ... ... <看更多>

SQL Server introduced a CONCAT() function in MSSQLServer 2012. This function returns a non-null varchar(..) or nvarchar(..) string that ... ... <看更多>

Aggregate function accepts strings to be aggregated and produces a comma-delimited list of grouped strings. Arguments. VALUE: any valid string. Return type. ... <看更多>