![]() 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 : It is also proposed that Halomonas halodurans is a later heterotypic synonym of Cobetia marina, and emended descriptions of the genus Cobetia and the species Cobetia marina are provided.CREATE SYNONYM synonym_name FOR database_object (type strain KMM 3880 T = NRIC 0814 T = CCUG 49563 T) and Cobetia pacifica sp. (type strain KMM 1561 T = NRIC 0815 T = CCUG 49560 T), Cobetia litoralis sp. On the basis of phylogenetic analysis, DNA–DNA hybridization and phenotypic characterization, three novel species are proposed, named Cobetia amphilecti sp. marina DSM 4741 T, indicating that they belong to the same species. marina DSM 4741 T, and it showed a high DNA relatedness value of 96 % with C. Halomonas halodurans NBRC 15607 T was included in this study as it has recently been reported to exhibit high 16S rRNA gene sequence similarity to C. marina DSM 4741 T and Cobetia crustatorum JCM 15644 T revealed that the five strains represent three separate genospecies, which could be differentiated in their morphological, physiological and biochemical characteristics. DNA–DNA hybridization experiments between and among the novel strains and C. On the basis of 16S rRNA gene sequence analysis, the novel isolates were affiliated to the genus Cobetia, sharing the highest sequence similarity of 99.3–99.9 % with Cobetia marina DSM 4741 T. A group of five Gram-negative, aerobic, halotolerant, non-pigmented bacteria isolated from shallow sediment samples and invertebrate specimens collected from the Gulf of Alaska and the Sea of Japan was subjected to taxonomic study.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |