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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:
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.
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 ...
23 Μαΐ 2024 · Set operations in SQL are techniques for combining or comparing the results of two or more SELECT statements. They act like mathematical set operations, letting us find the union, intersection, or difference between the rows returned by our queries.
19 Φεβ 2024 · A set operation is one that combines the results of multiple query blocks into one. For example, we could combine the result of two separate SELECT statements. The results are displayed in a single result set as though we’d run a single query.
23 Φεβ 2024 · The SET operators in SQL combine and compare the results of two or more SELECT statement queries into a single result. Instead of combining columns as in SQL joins, they function by merging rows from two or more tables.
18 Αυγ 2014 · Is there a way to set all variables with one set statment, like you can with a declare statement? For example: Declare @Test VARCHAR(10), @Test2 VARCHAR(10), @Test3 INT. SET @Test = 'test'. SET @Test2 = 'Test2'. SET @Test3 = 1.
