select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database. If TYPE OF is used with a (VAR)CHAR type, its character.
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SELECT CAST (miles AS INT) FROM Flights
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I was wondering if there was an easy way in SQL to convert an integer to its binary representation and then store it as a varchar. For example 5 would be converted to "101" and stored as a varchar.
Во-вторых, результат функции CAST для значения выражения, равного NULL, тоже будет NULL.
The CAST() function converts a value (of any type) into a specified datatype.
SELECT CAST('abc' AS varchar(5)) COLLATE French_CS_AS. Truncating and rounding results. When converting character or binary expressions (binary, char, nchar
Simple casts: SELECT CAST("abc" AS BINARY); SELECT CAST("1" AS UNSIGNED INTEGER); SELECT CAST(123 AS CHAR CHARACTER SET utf8).