The amount of data stored in such fields can vary in length. Usually you do specify a maxmimum length so that databases can optimize how data is stored and accessed.
Its variable for diffrent fields like it varies 80-120m in football and different in other sports
format prefix
It means that the length of something can vary, that it is not always the same length. The expression "variable length" may be used in different context, so I don't know what the item of variable length is that you heard or read about.It means that the length of something can vary, that it is not always the same length. The expression "variable length" may be used in different context, so I don't know what the item of variable length is that you heard or read about.It means that the length of something can vary, that it is not always the same length. The expression "variable length" may be used in different context, so I don't know what the item of variable length is that you heard or read about.It means that the length of something can vary, that it is not always the same length. The expression "variable length" may be used in different context, so I don't know what the item of variable length is that you heard or read about.
No, it is a continuous variable.
Any variable can be the independent variable. It depends partly on what the dependent variable is, partly on the relationship you are examining. For example, if looking at age and length of children's feet, foot length would be considered the dependent variable. But if looking at foot length and shoe size, then foot length would be the independent variable.
A telephoto lens has a fixed focal length and provides a narrow field of view for capturing distant subjects, while a zoom lens has a variable focal length that allows for adjusting the magnification and field of view.
When a local variable has the same name as a field, it shadows the field's name within its scope. This means that within that scope, any reference to the variable name will refer to the local variable rather than the field. As a result, the field becomes inaccessible directly by that name until the scope of the local variable ends. This can lead to confusion and potential bugs if not managed properly.
fixed length database
is mass an independent variable
It depends on which variable is independent, and which one is dependent (its value is determined by a function of the independent variable). So suppose that concentration is a function of an arbitrary length (the length is what determines concentration). The independent variable (length) is put on the horizontal axis, and the dependent variable (concentration) is put on the vertical axis.
The CHAR datatype uses a fixed length, where as the VARCHAR datatype can be variable in length up to the maximum value specified for the length. If you insert "Hello" into a CHAR(10) field, the column would actually contain "Hello " with 5 trailing spaces. The same value inserted in a VARCHAR(10) field would contain "Hello". char datatype is fixed length data type and it store maximum 255 characters while varchardatatype store up to 4000 character of variable length datatype
Yes, it is.