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31. In other words, all columns that are part of the partitioning key must be present in the primary key or unique index definition.
32. Choose two fields from the database table that comprise the primary key.
33. The network monitoring includes the WAP data status analysis, the WAP PKI (primary key indication) analysis, the resource adjustment, etc.
34. It also permits fast access to data when you use the primary key index in queries.
35. The element defines the primary key of the main table.
36. A primary key is a column a unique value for each row.
36. Sentencedict.com is a sentence dictionary, on which you can find excellent sentences for a large number of words.
37. A unique index or primary key is required for data record identification in this database.
38. Unique, primary key, referential, check, and functional dependency constraints are supported.
39. The column may not have a PRIMARY KEY or UNIQUE constraint.
40. Although this lookup is done via the primary key index, it does take CPU cycles to do the search, and possibly I/O to read index page(s) into the buffer pool.
41. All data should be accessible without ambiguity. This can be accomplished through a combination of the table name, primary key, and column name.
42. It queries your database, indexes each column in each row of the result, and ties each index entry to the row's primary key.
43. Only one Primary Key , But this key included two fields.
44. 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.
45. A primary key is a special thing in the relational model: It must be unique to each record (row) of a table.
46. Right - click the column you want to set as the primary key.
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