![]() ![]() Or if I force the string literal to use a case-insensitive collation: mysql> select * from users_user where username like 'DeMO1-0048' collate utf8mb4_bin Here we see the default collation of utf8mb4_general_ci is case-insensitive: mysql> select * from users_user where username like 'DeMO1-0048' īut if I force the column to use a case-sensitive collation: mysql> select * from users_user where username collate utf8mb4_bin like 'DeMO1-0048' Insert into users_user set username='DEMO1-0048' You can view EDUCBA’s recommended articles for more information.Case sensitivity is based on the collation of the column you are searching, defined in your CREATE TABLE, or else the collation of the session, which determines the character set and collation of string literals. We hope that this EDUCBA information on “SQL Case Insensitive” was beneficial to you. The SQL case sensitivity can be set for non-keyword objects such as tables and columns by specifying the collation against the database, tables, and column level by mentioning CI or CS in it that stands for case insensitive and case sensitive respectively. In the similar fashion UPPER() and LOWER() functions can be used in the LIKE clause for getting similar records and making the search insensitive in the table or database having collation that shows CS that is case sensitive in its collation. Now, we will use the function to make an insensitive comparison that makes the comparison using the UPPER function as shown in the below query statement – SELECT * FROM educba_articles WHERE UPPER(status) = "SUBMITTED" SELECT * FROM educba_articles WHERE LOWER(status) = "submitted" We can check the allowed collation values for our SQL database server by querying on the fn_helpcollations() of sys database and retrieving the name of the collation and its description using the following query statement – The output of the execution of the above query statement is follows – We can do that by simply executing the following query statement – SELECT Suppose that now we want to check the collation property of the columns of the table educba_articles that exists in my SQL database. The hierarchy is defined in the above sentence. The collation can be overridden further from database server level to database level and then to table level and lastly to the column level. Checking collation of columns of the table.When checked its collation is set to value latin1_swedish_ci which is again allowance of case insensitive usage of non-keyword objects. Consider an existing table named educba_articles n my educba database in SQL. The collation on the table can simply be checked by altering it using the F6 key in SQLyog or by querying on it using SELECT NAME, collation_name FROM sys.databases. The collation property can also be assigned on specific tables and columns of it to override the default collation property. ![]() The output of the execution of the above query statement is a follows giving the collation value as SQL_Latin1_General_CP1_CI_AS in which CI stands for case insensitivity which allows us to query on that database by specifying non-keyword words in upper or lower case – ![]() Let us a query for the existing database at my SQL server named educba and check for the collation value using the contents of the databases named table of sys database and following query statement – SELECT collation_name AS COLLATION The same applies to keywords as they are allowed to be entered in any case but most of the time it is a good practice to use them in all upper cases according to conventions.Īlternatively, the collation property for SQL database server can also be checked by querying on the table named databases that are present in sys database of your SQL server to check for the case sensitivity that is allowed for the particular database by mentioning the value of the name column as the value of your database name for which you are checking the collation. In the above output, we can observe that collation value contains CI that is case sensitive, and hence while querying on that database server the objects other than keywords can be specified in upper or lower case. ![]() They stand for case insensitive and case sensitive respectively. The collation value contains either CI or CS in it. The output of the execution of the above query statement is as follows: SELECT Serverproperty('COLLATION') AS COLLATION ![]()
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