Learn the difference between CHAR and VARCHAR data types in SQL, how they affect storage and performance, and how to choose the best one for your database.

If I declare a varchar(1000) for a field and someone enters "hi", I'm wondering how the memory is allocated for it. I was under the impression that varchar2(1000) in Oracle would only allocate ...

To define a string in a variable we are using CHAR and VARCHAR in SQL. CHAR: string(0-255), can store characters of fixed length. eg: CHAR(50) VARCHAR: string(0-255), can store characters up to given ...

AFAICT Oracle didnt follow the SQL specs and made CHAR and VARCHAR too short - VARCHAR2 is something of an apology for that.

QuestDB 8.0 with 50 percent more SQL performance and new VARCHAR data type Version 8.0 of the QuestDB time series database is said to be significantly faster. Furthermore, the open source version ...