Is PostgreSQL case-sensitive?
PostgreSQL is a case-sensitive database by default, but provides various possibilities for performing case-insensitive operations and working with collations.
Are SQL column names case-sensitive?
The SQL Keywords are case-insensitive ( SELECT , FROM , WHERE , etc), but 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.
Are column names case sensitive in Snowflake?
Snowflake stores unquoted column names in uppercase. The column names in a select statement are not case sensitive unless quoted.
How do I make columns case sensitive in SQL?
You can also make column case sensitive by changing column’s collation from case insensitive SQL_Latin1_General_CP1_CI_AI to case sensitive Latin1_General_CS_AS. Lets use Alter Command to change the column Name collation from case insensitive to case sensitive.
Is Snowflake data case sensitive?
By default, Snowflake metadata is case insensitive and displays as uppercases. When we change data source connection from Greenplum to Snowflake for the same query, metadata is returned in uppercase.
Which is case sensitive in PostgreSQL quoted names?
1 Answer 1. In PostgreSQL unquoted names are case-insensitive. Thus SELECT * FROM hello and SELECT * FROM HELLO are equivalent. However, quoted names are case-sensitive.
Why do column names have to be double quoted in PostgreSQL?
Identifiers (including column names) that are not double-quoted are folded to lowercase in PostgreSQL. Column names that were created with double-quotes and thereby retained uppercase letters (and/or other syntax violations) have to be double-quoted for the rest of their life:
When to use unquoted or quoted entities in PostgreSQL?
Thus, when creating entities (tables, views, procedures, etc) in PostgreSQL, you should specify them either unquoted, or quoted-but-lowercased. To convert existing tables/views/etc you can use something like ALTER TABLE “FOO” RENAME TO “foo”.
Is the identifier foo the same in PostgreSQL?
For example, the identifiers FOO, foo, and “foo” are considered the same by PostgreSQL, but “Foo” and “FOO” are different from these three and each other. If you want to write portable applications you are advised to always quote a particular name or never quote it.