What is the max size of CLOB in Oracle?

What is the max size of CLOB in Oracle?

4 GB
Datatype Limits

Datatypes	Limit
CLOB	Maximum size: (4 GB – 1) * DB_BLOCK_SIZE initialization parameter (8 TB to 128 TB)
Literals (characters or numbers in SQL or PL/SQL)	Maximum size: 4000 characters
LONG	Maximum size: 2 GB – 1
NCHAR	Maximum size: 2000 bytes

What is the difference between varchar and VARCHAR2 in Oracle?

VARCHAR2 is the same as VARCHAR in the oracle database. The main difference is that VARCHAR is ANSI Standard and VARCHAR2 is Oracle standard. The VarChar2 data type is used to store the character values. It is a variable-length data type i.e we can change the size of the character variable at execution time.

How many characters can CLOB hold?

A CLOB (character large object) value can be up to 2,147,483,647 characters long.

VARCHAR is ANSI standard but takes up space whereas VARCHAR2 is Oracle-only but makes more efficient use of space. VARCHAR2 does not distinguish between a NULL and empty string, and never will.

What is the maximum length of a table name in Oracle?

As stated in the docs, the maximum length of object name (tables, columns, triggers, packages, etc.) is 30 bytes: The only exceptions are database names (8 byte limit) and database links (128 bytes). As of Oracle Database 12.2, the maximum length of names increased to 128 bytes (provided compatible is set to 12.2 or higher).

What is the MySQL varchar max size?

Mysql varchar max length. Maximum data what we can store in varchar in mysql was 255. But after Mysql version 5.0.3 varchar can store maximum of 65,535 characters. But again this limit is having limitation of maximum row size which is 65535 bytes. It means including all columns it should be less than 65,535 bytes.