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22 Ιουν 2011 · You can only have one SET statement, with multiple fields, however, one WHERE clause as well. update table1 set field1=value1, field2=value2, field3=value3 where filed4=value5. answered Jun 22, 2011 at 20:40. Ahmad.
31 Ιαν 2012 · 12 Answers. Sorted by: 300. Try this: UPDATE table1 . SET a = t2.a, b = t2.b, ....... FROM table2 t2. WHERE table1.id = t2.id. That should work in most SQL dialects, excluding Oracle.
SET. The SET command is used with UPDATE to specify which columns and values that should be updated in a table. The following SQL updates the first customer (CustomerID = 1) with a new ContactName and a new City:
25 Σεπ 2023 · The SQL 'SET' statement is used to modify the values of specified columns in a table. It is commonly used in the UPDATE statement, which updates existing records in a table. General Syntax. SET column1 = value1, column2 = value2,...; SQL 'SET' in UPDATE Statement. The 'SET' command is most frequently used in the UPDATE statement.
SET Statement Assigns a new value to a previously declared variable. The new value does not need to be of the same type as the previous value. It is an error to assign a value to an undeclared variable. Use the DECLARE statement to declare variables. Syntax. SET variable-name = new-value; Parameters. variable-name: identifier
MySQL 9.1 Reference Manual / / Data Types / String Data Types / The SET Type. 13.3.7 The SET Type. A SET is a string object that can have zero or more values, each of which must be chosen from a list of permitted values specified when the table is created. SET column values that consist of multiple set members are specified with members ...
SQL set operations combine the results of multiple query blocks into a single result. A query block, sometimes also known as a simple table, is any SQL statement that returns a result set, such as SELECT. MySQL 8.4 also supports TABLE and VALUES statements.
