TOT_COST+2.000 from DBRMAST T1 inner join DBRMAST t2 on t2.
This works by using UPDATE to iterate over the INNER JOIN.
also, there are mitigating methods in client tools (eg generation UPDATE statements) or by using ORMs I suspect OP just used an alias loosely because the question isn't about correctness of syntax, but "why" this syntax. Personally, I prefer using aliases throughout like I did here: stackoverflow.com/a/982947/27535 If you need to re-type this several times, you can do like I did once. Get your columns` names into rows in excel sheet (write down at the end of each column name (=) which is easy in notepad++) on the right side make a column to copy and paste your value that will correspond to the new entries at each column. Then on the right of them in an independent column put the commas as designed Then you will have to copy your values into the middle column each time then just paste then and run I do not know an easier solution update T1 set T1. If you're doing it programmatically, use parameterized queries and you only ever have to write it once.
If you're doing it manually, use SQL Management Studio's editor and enter the data directly into the row rather than writing a query.
The "tiresome way" is standard SQL and how mainstream RDBMS do it.
With a 100+ columns, you mostly likely have a design problem...
@Roger Ray what version of My SQL and what was your query, as this DOES infact function as [email protected] Wood yeah. It would be great if someone knows how to implement it to My SQL and share with everyone. This also has the same limitation as the proprietary Thank you!
I'm sure lots of people are looking for a My SQL version solution This will tend to work across almost all DBMS which means learn once, execute everywhere. Col2 AS _Col2 FROM T1 JOIN T2 ON T1= T2/*Where clause added to exclude rows that are the same in both tables Handles NULL values correctly*/ WHERE EXISTS(SELECT T1. I know this is old, but just wanted to say this one worked for me.
If that is more important to you than performance you might prefer this answer, especially if your update is a one off to correct some data. My server wont allow FROM to be used in an UPDATE statement. UPDATE suppliers SET supplier_name = (SELECT FROM customers WHERE customers.customer_id = suppliers.supplier_id) WHERE EXISTS (SELECT FROM customers WHERE customers.customer_id = suppliers.supplier_id); This may be a niche reason to perform an update (for example, mainly used in a procedure), or may be obvious to others, but it should also be stated that you can perform an update-select statement without using join (in case the tables you're updating between have no common field).