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What is the maximum length of data I can put in a BLOB column in MySQL?
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Default. A BLOB without a specified length is defaulted to two gigabytes (2,147,483,647).
A BLOB can be 65535 bytes (64 KB) maximum. If you need more consider using: a MEDIUMBLOB for 16777215 bytes (16 MB) a LONGBLOB for 4294967295 bytes (4 GB).
LONGBLOB: A binary large object column with a maximum length of 4294967295 (2^32 - 1) bytes, or 4GB in storage. Each LONGBLOB value is stored using a four-byte length prefix that indicates the number of bytes in the value.
GetLength – Find the size of BLOB/CLOB column. This is simply how to find the size of individual rows with the CLOB/BLOB column. DBMS_LOB. GetLength returns the number of characters (bytes) in the CLOB/BLOB column.
A BLOB can be 65535 bytes (64 KB) maximum.
If you need more consider using:
a MEDIUMBLOB for 16777215 bytes (16 MB)
a LONGBLOB for 4294967295 bytes (4 GB).
See Storage Requirements for String Types for more info.
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