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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.
sql union all data type error with nulls - Stack Overflow. stackoverflow.com. I have two tables which I have a 'union all' between.
';SELECT null,null,null,null,null,null,null,null,null,null, null,null,null,null работает вне зависимости от числа полей в исходном.
Note: A NULL value is different from a zero value or a field that contains spaces. A field with a NULL value is one that has been
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In general, every NULL value is taken into account to vary from each alternative NULL in the database.
The null character (also null terminator or null byte) is a control character with the value zero. It is present in many character sets, including ISO/IEC 646 (or ASCII), the C0 control code, the Universal Coded Character Set (or Unicode), and EBCDIC.
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SQL select null keyword with sql, tutorial, examples, insert, update, delete, select, join, database, table, join.