https://www.openldap.org/lists/openldap-devel/200211/msg00059.html
Re: Empty Strings in LDAP String Attributes
empty stringsldapattributes
https://www.enterprisedb.com/postgres-tutorials/how-null-and-empty-strings-are-treated-postgresql-vs-oracle
How NULL and empty strings are treated in PostgreSQL vs Oracle | EDB
This article discusses the differences between how Oracle and PostgreSQL evaluate NULL characters and empty strings. Oracle reads empty strings as NULLs, while...
postgresql vs oracleempty strings
https://www.ktvu.com/news/rock-band-kiss-is-now-selling-an-empty-bag-of-air-guitar-strings-for-4
Rock band KISS is now selling an empty bag of "air guitar strings" for $4 | KTVU FOX 2
The rock band KISS is selling a package of air guitar strings for $3.99. Yes, an empty plastic bag for $4.00.