2.3. Case Sensitivity in SQL Statements | Using SQL to Manage Data (2024)

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Last Update: November 17, 2020

2.3. Case Sensitivity in SQL Statements | Using SQL to Manage Data (2024)

FAQs

How do you handle case-sensitive in SQL query? ›

To handle case sensitivity in UNION operations, you can use SQL functions like LOWER() or UPPER() to convert string values to lowercase or uppercase, respectively. By doing so, you ensure that string comparisons are case-insensitive during the UNION operation, effectively treating 'A' and 'a' as the same value.

Is SQL case-sensitive for data? ›

By default, SQL Server names are case insensitive. However, you can create a case sensitive SQL Server database by changing the COLLATION property. In PostgreSQL, object names are case insensitive. By default, the AWS Schema Conversion Tool (AWS SCT) uses object names in lowercase for PostgreSQL.

Which two statements are correct SQL statements are case-sensitive? ›

Final answer:

The correct answer is option 4) None of the above. SQL statements are not case-sensitive and can be written on separate lines for better readability, and keywords cannot generally be abbreviated.

How do I sort case-sensitive in SQL? ›

Sorting Data by Case Sensitivity

By default, the ORDER BY clause performs a case-insensitive sort. However, if you want to perform a case-sensitive sort, you can use the COLLATE keyword followed by a case-sensitive collation name.

How to protect sensitive data in SQL? ›

Dynamic data masking helps prevent unauthorized access to sensitive data by enabling customers to specify how much sensitive data to reveal with minimal effect on the application layer. DDM can be configured on designated database fields to hide sensitive data in the result sets of queries.

Is MySQL is case-sensitive? ›

In MYSQL, table and column names are not case sensitive on windows but they are case sensitive in Linux commands. Column names are not sensitive in MSSQL and MYSQL. In PostgreSQL, column values are sensitive.

Is SQL like case-sensitive? ›

Important to note that the pattern passed into the LIKE operator is case-sensitive, unlike its case-insensitive cousin, ILIKE.

Are SQL statements case-sensitive True or false? ›

Answer : False SQL statements are not case-sensitive, except specified and capable in single or several lines. .............................…

Why SQL is not a case-sensitive language? ›

The SQL language specification says that "SQL language characters" (which are used for identifiers and SQL keywords) are case-insensitive. If SQL were case-sensitive, it would not comply with the language standard. So you would either have to change the SQL standard, or else have a rebellious streak.

In which two systems is MySQL not case-sensitive? ›

By default, table aliases are case-sensitive on Unix, but not so on Windows or macOS.

What are the two types of case statement in SQL? ›

There are two types of SQL CASE statements: a simple CASE statement and a searched CASE statement. Simple CASE statements determine the result value evaluating an expression against multiple values. Searched CASE statements determine the result value evaluating a set of Boolean expressions.

What is case-sensitive in SQL? ›

Case Sensitivity in String Comparison

When comparing string values, SQL is case-sensitive. For instance, if you are querying a column that contains text, the case of the text can affect the result.

How do you find case-sensitive in SQL? ›

To write a case-sensitive search in SQL Server, don't use UPPER or LOWER functions around the column to filter. Instead, use the COLLATE keyword with a case-sensitive collation followed by the comparison.

Is standard SQL case-sensitive? ›

SQL keywords are not case sensitive. Some of us just prefer to write keywords in upper case to make complex queries easier for humans to read and understand. Depending on the particular RDBMS and/or the server's settings, database objects and data in columns may or may not be case sensitive.

How do I turn off case sensitivity in SQL? ›

MySQL will look for objects names in with the exact case sensitivity as written in the query. You can turn off table name case sensitivity in MySQL by setting the parameter lower_case_table_names to 1. Column, index, stored routine, event names, and column aliases aren't case sensitive on either platform.

How would you make a case-insensitive query in MySQL? ›

The syntax is as follows: SELECT DISTINCT UPPER(yourColumnName) FROM yourTableName; Case 2: Using LOWER(). Here is the query to select case-insensitive distinct.

How to ignore case in where clause in SQL? ›

Checking the case sensitivity of SQL server

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. Using LOWER() and UPPER() functions for case in-sensitive that is ignoring the case in queries.

How to use LIKE operator for case-sensitive in SQL? ›

LIKE performs case-insensitive substring matches if the collation for the expression and pattern is case-insensitive. For case-sensitive matches, declare either argument to use a binary collation using COLLATE , or coerce either of them to a BINARY string using CAST .

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