BFILE |
Maximum size: 4 GB
Maximum size of a file name: 255 characters
Maximum size of a directory name: 30 characters
Maximum number of open BFILEs: see Comments |
The maximum number of BFILEs is limited by the value of the SESSION_MAX_OPEN_FILES initialization parameter, which is itself limited by the maximum number of open files the operating system will allow. |
BLOB |
Maximum size: (4 GB - 1) * DB_BLOCK_SIZE initialization parameter (8 TB to 128 TB) |
The number of LOB columns per table is limited only by the maximum number of columns per table (that is, 1000Foot 1 ). |
CHAR |
Maximum size: 2000 bytes |
|
CHAR VARYING |
Maximum size: 4000 bytes |
|
CLOB |
Maximum size: (4 GB - 1) * DB_BLOCK_SIZE initialization parameter (8 TB to 128 TB) |
The number of LOB columns per table is limited only by the maximum number of columns per table (that is, 1000Footref 1). |
| Literals (characters or numbers in SQL or PL/SQL) |
Maximum size: 4000 characters |
|
LONG |
Maximum size: 2 GB - 1 |
Only one LONG column is allowed per table. |
NCHAR |
Maximum size: 2000 bytes |
|
NCHAR VARYING |
Maximum size: 4000 bytes |
|
NCLOB |
Maximum size: (4 GB - 1) * DB_BLOCK_SIZE initialization parameter (8 TB to 128 TB) |
The number of LOB columns per table is limited only by the maximum number of columns per table (that is, 1000Footref 1). |
NUMBER |
999...(38 9's) x10125 maximum value |
Can be represented to full 38-digit precision (the mantissa). |
| -999...(38 9's) x10125 minimum value |
Can be represented to full 38-digit precision (the mantissa). |
| Precision |
38 significant digits |
|
RAW |
Maximum size: 2000 bytes |
|
VARCHAR |
Maximum size: 4000 bytes |
|
VARCHAR2 |
Maximum size: 4000 bytes |
|
