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yep foreign key can have duplicate values
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∙ 12y ago
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Does foreign key alllows null values and duplicate values?
A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.
Duplicates in a excel spreadsheets?
I) To prevent duplicate values (from A2 to A10) when entering data:1) Select the range (eg: A2 to A10)2) Data -> Validation -> Settings -> Custom -> Formula:=countif($A$2:$A$10,A2)=1II) To find duplicate items in combine column:To check whether the data in column C is Duplicate or Unique:-Firstly enter values in column C,then enter the formula in column D:=if(countif($C$1:C1,C1)>1, "Duplicate", "Unique")then copy the formula downwards.
What is the function of constraint?
It prevents certain types of inconsistent data values from being entered.It assign a row(s) nullable values.It assign a column(s) duplicate data values from being entered.None of above
What is key constraints?
Primary Key is a Constraint Used to avoid Duplicate entries in database table and you define primary key the column doesn't allow NULL values.
In excel what do you do with the second row or column?
There is no particular answer to that. You can do what you want with them. Often though, the first column and first row are kept for headings, so the second column and second row contain the first values on the spreadsheet.
What is primary key constraint?
Primary Key is a Constraint Used to avoid Duplicate entries in database table and you define primary key the column doesn't allow NULL values.
A column chart represents values as what?
The height of the column.
What type of field cannot hold duplicate value in ms access?
A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.
What is the main reason to use inheritance?
to avoid the duplicate values
Expand 705 using place values?
705 In place values. '5' is the UNITS column '0' is the TENS column '7' is the HUNDREDS column. NB The next column to the left is the THOUSANDS column NNB The next column to the right is the TENTHS DECIMAL column.
Can the FirstName column be a primary key?
Yes, the FirstName column can be a primary key as long as it satisfies the requirements of a primary key, which include being unique and not null. However, it is generally not recommended to use a person's first name as a primary key as it may not be unique and could lead to data integrity issues.
How do you add a spreadsheet column?
If you have values in cells A1 through A12, you can add the column of values with the formula =SUM(A1:A12) .
