Ms sql update statement multiple columns

John Woo John Woo k 63 63 gold badges silver badges bronze badges. 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. Thangamani Palanisamy Thangamani Palanisamy 4, 3 3 gold badges 31 31 silver badges 38 38 bronze badges. Just to keep in mind: Although within the "inner join" t1 and t2 could be changed, "update t2" would not work.

BTW: This answer is the simplest way to build your update statement beginning from a select statement that shows old and new values. Peter Peter 1 1 gold badge 5 5 silver badges 14 14 bronze badges. This seems to work fine for my PostgreSQL Dragos Custura Dragos Custura 81 3 3 bronze badges. 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.

Mohamed Bekheit Mohamed Bekheit 11 2 2 bronze badges. First, get the result of table2. Next, unpivot it. Weihui Guo Weihui Guo 3, 4 4 gold badges 28 28 silver badges 49 49 bronze badges.

Tushar Mellad Qarizada Mellad Qarizada 89 4 4 silver badges 16 16 bronze badges. This is pretty much just a repeat of the existing answers.

Anthony Horne 2, 2 2 gold badges 29 29 silver badges 50 50 bronze badges. Michael Kisingi Michael Kisingi 10 3 3 bronze badges. Please add some commentary to your answer to explain what it's doing. At the moment this is flagged as a low quality answer and will be deleted unless improved. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Whether the l at ter is a good idea is deb at able, though. The target tables would be joined together for the upd at e , and when I say "joined", I mean it in a broader sense: you do not have to specify a joining condition, in which case theirs would be a cross join.

Also, I would like to upd at e multiple columns in one table from multiple tables. Scenario 1. Column1 ,T2. Column2 ,T3. Posted: 5 days ago Example. The examples below fill in a PhoneNumber for any Employee who is also a Customer and currently does not have a phone number set in the Employees Table. These examples use the Employees and Customers tables from the Example D at abases.

Standard SQL. Posted: 1 week ago Upd at e s multiple columns. Return the SUM of unique values. Expression made up of a single constant, variable, scalar function, or column name. The expression is an expression of the exact numeric or approxim at e numeric d at a type c at egory, except for the bit d at a type.

Aggreg at e functions and subqueries are not permitted. How to update multiple columns at once Update multiple rows in SQL with different values at once Is there any SQL function available to update multiple How can we update columns values on multiple rows with a How-To:: SQL update multiple rows with a single query SQL Update query to update multiple columns and tables in In SQL, is it possible to update entries in multiple rows Update multiple columns from multiple tables in a single Update table with multiple columns from another table You cannot use.

If an update to a row violates a constraint or rule, violates the NULL setting for the column, or the new value is an incompatible data type, the statement is canceled, an error is returned, and no records are updated. When an UPDATE statement encounters an arithmetic error overflow, divide by zero, or a domain error during expression evaluation, the update is not performed.

The rest of the batch is not executed, and an error message is returned. If an update to a column or columns participating in a clustered index causes the size of the clustered index and the row to exceed 8, bytes, the update fails and an error message is returned.

UPDATE statements are allowed in the body of user-defined functions only if the table being modified is a table variable. Without this relationship, the query plan may produce unexpected join behavior and unintended query results. The following examples demonstrate correct and incorrect methods of specifying a CTE when the CTE is the target object of the update operation.

To avoid these higher level locks, consider dividing update statements that affect thousands of rows or more into batches, and ensure that any join and filter conditions are supported by indexes. WRITE clause are minimally logged. Examples in this section demonstrate the basic functionality of the UPDATE statement using the minimum required syntax. The following example updates a single column for all rows in the Person. Address table. Examples in this section demonstrate ways that you can use to limit the number of rows affected by the UPDATE statement.

The statement updates the value in the Color column of the Production. Product table for all rows that have an existing value of 'Red' in the Color column and have a value in the Name column that starts with 'Road'. The following example updates the VacationHours column by 25 percent for 10 random rows in the Employee table. The following example updates the vacation hours of the 10 employees with the earliest hire dates. The following example updates the PerAssemblyQty value for all parts and components that are used directly or indirectly to create the ProductAssemblyID The common table expression returns a hierarchical list of parts that are used directly to build ProductAssemblyID and parts that are used to build those components, and so on.

Only the rows returned by the common table expression are modified. Other tables participating in the cursor are not affected. The example doubles the value in the ListPrice column for all rows in the Product table. The following example uses the variable NewPrice to increment the price of all red bicycles by taking the current price and adding 10 to it.

The following example uses a subquery in the SET clause to determine the value that is used to update the column. The subquery must return only a scalar value that is, a single value per row.

The following example sets the CostRate column to its default value 0. Examples in this section demonstrate how to update rows by specifying a view, table alias, or table variable. The following example updates rows in a table by specifying a view as the target object. The view definition references multiple tables, however, the UPDATE statement succeeds because it references columns from only one of the underlying tables.

For more information, see Modify Data Through a View. The follow example updates rows in the table Production. Examples in this section demonstrate methods of updating rows from one table based on information in another table. The previous example assumes that only one sale is recorded for a specified salesperson on a specific date and that updates are current.

If more than one sale for a specified salesperson can be recorded on the same day, the example shown does not work correctly. The example runs without error, but each SalesYTD value is updated with only one sale, regardless of how many sales actually occurred on that day. In the situation in which more than one sale for a specified salesperson can occur on the same day, all the sales for each sales person must be aggregated together within the UPDATE statement, as shown in the following example:.

Examples in this section demonstrate how to update rows in a remote target table by using a linked server or a rowset function to reference the remote table. The following example updates a table on a remote server. The linked server name, MyLinkedServer , is then specified as part of the four-part object name in the form server.

Note that you must specify a valid server name for datasrc. The linked server name created in the previous example is used in this example. For more information, see ad hoc distributed queries Server Configuration Option. Examples in this section demonstrate methods of updating values in columns that are defined with large object LOB data types. The following example uses the. Document table. The word components is replaced with the word features by specifying the replacement word, the starting location offset of the word to be replaced in the existing data, and the number of characters to be replaced length.