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?
I am working on a UNION ALL and receive this error to start: Msg 205, Level 16, State 1, Line 1 All queries combined using a UNION...
A field with a NULL value is a field with no value. If a field in a table is optional, it is possible to insert a new record or update a record without adding a value to this field.
999999.9+union+all+select+%27R3DM0V3_hvj_injection',null
Классический вариант внедрения SQL-кода, когда в уязвимый параметр передается выражение, начинающееся с «UNION ALL SELECT».
union all select null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null
Now this column contains alphanumeric values as well as some nulls. In my application we consider NULL is equal to NULL. A user gives an input and then i have to display all records that match this value in C1, if user inputs null then all nullls
In general, R supports: NULL NA NaN Inf / -Inf NULL is an object and is returned when an expression or function results in an undefined value.
SELECT CAST('abc' AS varchar(5)) COLLATE French_CS_AS. Truncating and rounding results. When converting character or binary expressions (binary, char, nchar, nvarchar, varbinary, or varchar) to an expression of a different data type, the conversion operation could truncate the output data...