foreign key造句
1 A relationship between the main foreign key constraint graph.
2 Include foreign key columns as properties on entity types.
3 New syntax for disabling an index for foreign key constraint was added to use with the ALTER statement.
4 If it cannot find a foreign key relationship between the tables, the default is a cross product.
5 Filters that are created for each foreign key or Boolean fields.
6 With foreign key associations , you can use both Methods: To change create or modify relationships.
7 In the Foreign Key Relationships dialog box, select the relationship in the Selected Relationship list.
8 Creates both a relation and foreign key constraint ( see below for descriptions ).
9 A foreign key constraint allows you to define referential integrity between a parent and child table.
10 With independent associations, you cannot use the foreign key property.
11 A foreign key is a constraint that enforces referential integrity.
12 A foreign key constraint referencing this table was dropped or changed.
13 The foreign key side is also denoted by a key symbol.
14 The foreign key constraint is applied when you save the table.
15 The tag's column attribute specifies the foreign key column in the link table that relates the link table to the mapping table for the current class.
16 A foreign key constraint referencing this table has been dropped or changed.
17 A primary key of a table can be a foreign key in any other table.
18 There is no table in the dataset that a foreign key constraint could refer to.
19 There must be at least one table in the dataset to define a foreign key constraint.
20 Ensure that Pluralize ors ingularize generated object names and Include Foreign Key Columns in the Model are selected.
21 For the sake of simplicity, consider VARCHAR as the default type for every column that is not a primary or a foreign key.
22 In Listing 14, an attempt to insert into the table fails due to a foreign key constraint violation (SQLSTATE 23503) on the customer number.
23 This is a classic one-to-many relationship, and would usually be modeled for a database as a user table and a phone number table, where the phone number table contains a foreign key to the user table.
24 The system proposes the value table as check table when you try to define a foreign key for this field. You can override this proposal.
25 Then for each row from the fact table scan, the foreign key is also hashed and probed into the bit vector to determine whether the current fact table row is filtered out.
26 When we are able to relate without ambiguity any association end to a foreign key, we can apply the correspondence to specify to which primary key the foreign key refers.