![]() It’s useful to study these systems independently, but it’s also crucial to consider how they interact. ![]() A single link on a page can simultaneously be part of the site’s structure, organization, labeling, navigation, and searching systems. Hierarchical, equivalence, and associative relationshipsįaceted classification and guided navigationĪn interactive information environment-like a website-is a collection of interconnected systems with complex dependencies. ![]() The basic tool for the manipulation of reality is the manipulation of words.ĭefinitions of metadata and controlled vocabulariesĪn overview of synonym rings, authority files, classification schemes, and thesauri Thesauri, Controlled Vocabularies, and Metadata And as can be seen from the output of the query, the results seem to be correct.Chapter 10. In this example, we have fetched details such as student_name, degree_year, and society for only students majoring in “computer science engineering,” using the synonym of the student’s table. WHERE degree_major = 'Computer Science Engineering' Yes, we can fetch specific columns and records from the said table using its synonym, as shown below. The answer to your question is a big “Yes!”. Now you must be wondering if it is even possible to use the columns of the original database objects using its synonym. By now, you might have observed that the SELECT statement returns the same output as the SELECT statement of the first query of this article. Here is a simple SELECT * statement to select all the records from the “students” table using its synonym. For example, if you try to insert a new row or update a column value in the synonym, the said changes will be made in the base object itself. ![]() When working with synonyms in SQL Server, the base database object is affected in the same manner as it gets affected when the original name or location of the object is used. In this section, we have learned the creation of a synonym, and in the next section, we will see that synonyms work as well as original names and locations when performing SELECT, UPDATE, INSERT, EXECUTE, DELETE, SUB-SELECT statements. We can clearly see from the above image that the “syn_student” synonym has been successfully created on the database object “students” table. We can check if the newly created synonym has been successfully created by going to the object explorer section and looking for the specified synonym under the synonyms header of the concerned database, as shown below. The synonym creation query got executed successfully. Now we are all set to create synonyms for this table. ****** Script for SelectTopNRows command from SSMS ******/ The table is present in the database “practice_db” and is stored in a schema named “dbo.” The table has the following data in it. SQL Query to illustrate the creation of a synonym on a database table object.Ĭonsider a dummy table called “students” for illustration purposes. Given below are the examples of SQL synonyms: Example #1 Having discussed the basic syntax and parameters used for working with synonyms in SQL Server, let’s try a few examples to understand the concept in more detail. One should also note that a synonym cannot be used as a reference to a user-defined aggregate function. Note: We cannot use synonyms for base database objects for some other synonyms. Assembly(CLR) objects such as stored procedures, inline functions, scalar functions.Various types of SQL functions: Inline, table-valued, and scalar.In SQL Server, we can create synonyms for the following types of database objects : It is usually done to simplify or provide a smaller name for an object name/location.ĭatabase_object: Name or location of the database object for which you wish to create a synonym. Provide a desired name for the database object name or location. The parameters/arguments used in the above-mentioned syntaxes are as follows : The basic syntax used for deleting a synonym on a database object is as follows : CREATE SYNONYM synonym_name FOR database_object
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