select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database.
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.
Select char_length(cast('123456789 1' as varchar(10))) from rdb$database. Получаем: Exception ... string truncation Т.е. пробел мы обрезать можем, а другие символы нет. Так и должно быть или нет?
SELECT DISTINCT CAST(EnglishProductName AS char(10)) AS Name, ListPrice FROM dbo.DimProduct WHERE EnglishProductName LIKE
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They are combining 126, 39, database name as hex value, 39, and 126. -- is a mysql comment - it ignores the rest of your query after.
SELECT CAST('test' AS CHAR CHARACTER SET utf8 COLLATE utf8_bin); Normally, you cannot compare a BLOB value or other binary string in
Definition and Usage. The CAST() function converts a value (of any type) into the specified datatype.
48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63. 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F. 0 1 2 3 4 5 6 7 8 9 : ; < = > ? ASCII. Hex.
В данный момент у нас нет одинакового количества колонок, поэтому union надо использовать по-другому.