how do you make a sql query case sensitive

by Prof. Ernesto Funk Published 3 years ago Updated 2 years ago

SQL is non-case-sensitive by default, so you will get all three items if doing a simple string comparison. To make it case-sensitive, you can cast the value of the field and your search value as varbinary: SELECT * FROM MyTbl WHERE CAST (A AS varbinary (20)) = CAST ('ABCdef' as varbinary (20))

Full Answer

How to check case-sensitivity in SQL Server?

SQL Server is, by default, case insensitive; however, it is possible to create a case-sensitive SQL Server database and even to make specific table columns case sensitive. The way to determine if a database or database object is to check its "COLLATION" property and look for "CI" or "CS" in the result .

How to find last executed query in SQL Server?

How To Find Last Few Executed Queries in SQL Server?

Finding Last Few Executed Queries Against All The Databases In SQL Server
Against A Specific Database. To filter the above query for a specific database use the DBID column in the view DM_EXEC_SQL_TEXT. ...
Drawbacks. The sys.dm_exec_query_stats DMV works based on the query plan in the cache. ...
Other Options. ...
Reference: Details about the dmv in Microsoft docs.

How to debug a slow SQL Server query?

The Debug menu and the Debug toolbar. Both the Debug menu and Debug toolbar are inactive until the focus is placed in an open Query Editor window. ...
The debugger keyboard shortcuts.
The Query Editor shortcut menu. ...
Menu items and context commands in the windows that are opened by the debugger, such as the Watch or Breakpoints windows.

How to create table using SELECT query in SQL Server?

To create a table in SQL Server using a query:

In the SQL Server Management Studio, click the New Query button on the toolbar
Type or paste a CREATE TABLE script (example below)
Click the ! Execute button on the toolbar

How do I make a case sensitive query in SQL?

Are SQL queries case sensitive?

The SQL keywords (SELECT, FROM, WHERE, etc.) are case-insensitive, yet they are frequently expressed in all capitals. Table and column names are case-sensitive in some settings.

How do I make SQL password case sensitive?

In SQL Server Table Designer, modify the Collation property of Password field in Column Properties window, check the " Case Sensitive " CheckBox. First retrieve the password from database into a variable, and then compare it with the TextBoxPassword.

Are SQL data types case sensitive?

The SQL keywords are case insensitive ( SELECT , FROM , WHERE , etc), but they are often written in all caps. However, in some setups, table and column names are case sensitive. MySQL has a configuration option to enable/disable it.

Does SQL have to be uppercase?

All Caps SQL Commands For readability, all SQL commands should be written in uppercase letters. This allows the reader to identify the keywords in the SQL statement and easily determine what the query is executing.

How do you match case sensitive in SQL Server?

Let us consider below is our normal SQL procedure that validates a user from the tblUser table. To tell SQL do a case-sensitive search, we will modify the above procedure as below. Please note we added a “COLLATE SQL_Latin1_General_CP1_CS_AS” to the field we want an exact match for. Keep learning and sharing!

What is case sensitive password examples?

Text or typed input that is sensitive to capitalization of letters. For example, "Computer" and "computer" are two different words because the "C" is uppercase in the first example and lowercase in the second example. On modern systems, passwords are case-sensitive, and usernames are usually case-sensitive as well.

How do I change case sensitive in Oracle?

Enable and disable Case Sensitive password in OracleDisable the Case Sensitive Password in Oracle. ALTER SYSTEM SET SEC_CASE_SENSITIVE_LOGON=FALSE SCOPE=BOTH;Enable the Case Sensitive Password in Oracle. ALTER SYSTEM SET SEC_CASE_SENSITIVE_LOGON=TRUE SCOPE=BOTH;Example.

What is case sensitive password?

adjective. In computing, if a written word such as a password is case-sensitive, it must be written in a particular form, for example using all capital letters or all small letters, in order for the computer to recognize it.

How do you make a column case insensitive in SQL Server?

Here is what I did, the key drop is required for the alter table: alter table page drop key name_title; alter table page modify column page_title varchar(255) NOT NULL default ''; There is table named 'page' that needs to become case insensitive.

How do you make a SQL query not case-sensitive?

Case insensitive SQL SELECT: Use upper or lower functions or this: select * from users where lower(first_name) = 'fred'; As you can see, the pattern is to make the field you're searching into uppercase or lowercase, and then make your search string also be uppercase or lowercase to match the SQL function you've used.

Is MySQL queries case-sensitive?

Table names are stored in lowercase on disk and name comparisons are not case-sensitive. MySQL converts all table names to lowercase on storage and lookup. This behavior also applies to database names and table aliases.

Does like in SQL ignore case?

SQL syntax is generally case insensitive. If LIKE and like lead to different results that means that your SQL syntax is case sensitive, which I've never seen before. The documentation for Hibernate says " sELEct is the same as SELECT ".

How to determine case sensitivity in SQL?

The case sensitivity of your query is determined by the collation of the columns in the query. The column collation is defined with a COLLATE clause in the CREATE or ALTER statement when you create the table or column.

Can you change the collation in SQL?

Collation can be set during SQL setup, database creation and table creation. You can of course alter the database and the table collation, but if you change the db collation after you have created your tables (with "database default") the existing tables will keep the original collation until you alter them.

Can you use different collation in SQL?

You can also use a different collation in your queries, by using COLLATE clause.

Can you use the same critera in SQL without the 'where' clause?

If you do use COLLATE in the WHERE clause, you can keep the same critera in the WHERE clause without COLLATE so SQL can use the index properly. You can see this in the follwoing code sample. The first query does an index scan, but by adding the same condition it does an index seek.

What keyword to use when you don't want to change collation in MySQL?

In MySQL if You don't want to change the collation and want to perform case sensitive search then just use binary keyword like this:

Can you do case sensitive search?

Just as others said, you can perform a case sensitive search. Or just change the collation format of a specified column as me. For the User/Password columns in my database I change them to collation through the following command:

Can you make a query using convert to varbinary?

You can make the query using convert to varbinary – it’s very easy. Example:

Does SQL Server consider case sensitive search?

I want to do a case sensitive search in my SQL query. But by default, SQL Server does not consider the case of the strings.

What does case sensitive mean in SQL?

Case sensitive here means that SQL Server will return different result set for CASE, Case, CaSe etc. and it will treat the mentioned strings as 3 different strings. A case sensitive database has a case sensitive collation.

How many matching rows does SQL Server find?

The SQL server does a case sensitive search and founds 2 matching rows.

How to do case insensitive SQL?

The SQL standard way to perform case insensitive queries is to use the SQL upper or lower functions, like this: As you can see, the pattern is to make the field you're searching into uppercase or lowercase, and then make your search string also be uppercase or lowercase to match the SQL function you’ve used.

What is the pattern in SQL?

As you can see, the pattern is to make the field you're searching into uppercase or lowercase, and then make your search string also be uppercase or lowercase to match the SQL function you’ve used. This works with all SQL databases I’ve used, including Postgresql, MySQL, and SQL Server.

Can you use the same technique to make SQL query case insensitive?

You can use the same technique to make your SQL LIKE queries case insensitive as well. Here’s how you use the uppercase function with a SQL LIKE query:

What is case sensitivity in SQL?

SQL Case sensitivity is to use the query statements and the keywords tables and columns by specifying them in capital or small letters of alphabets. SQL keywords are by default set to case insensitive, which means that the keywords are allowed to be used in lower or upper case. The names of the tables and columns specification are set to case insensitive on the SQL database server; however, it can be enabled and disabled by configuring the settings in SQL. The COLLATION is the property that decides and helps us to specify whether the elements other than keywords in SQL are to be allowed for case insensitivity or not. In this article, we will learn how we can check for the assigned collation values that determine case sensitivity of SQL and further see how lower and upper functions are used to make the queries that ignore the case of the values of the columns while searching or applying restriction. In this topic, we are going to learn about SQL ignore-case.

How to write a keyword in SQL?

We can write the keywords SELECT, FROM, WHERE, GROUP BY, etc., in either upper or lower case as they are case insensitive in SQL. The objects other than the keywords, like names of columns, tables, views, triggers, stored procedures, etc., can either be case sensitive or case insensitive. By default, they are set to case insensitive. The COLLATION property of the SQL server can be checked by using the function named Sevrverproperty () of SQL and passing the COLLARION as the parameter to it to get the value that is set as the collation to that SQL server. After executing it, you will get the collation value as shown in the output of the following query statement most of the times –

How to check collation property in SQL Server?

Alternatively, the collation property for SQL database server can also be checked by querying on the table named databases that are present in the 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. 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 –

What does CI stand for in SQL?

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 –