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Lesson Posted on 31 Jan Learn Oracle DBA OCA
Extended Data Types in Oracle SQL
Sky IT Solutions
Lead by an IT Professional with over 35 years (since 1987) of Technical exp in Oracle Database, S/W Dev,...
Prior to Oracle 12c :
• VARCHAR2 : 4000 bytes
• NVARCHAR2 : 4000 bytes
• RAW : 2000 bytes
Extended Data Types in Oracle 12c optionally increases these maximum sizes.
• VARCHAR2 : 32767 bytes
• NVARCHAR2 : 32767 bytes
• RAW : 32767 bytes
Extended data types functionality is controlled using the MAX_STRING_SIZE initialization parameter. Default value is 'STANDARD' which sets the maximum sizes to traditional lengths. Setting it to 'EXTENDED' allows it to extended it to 32767.
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Neeraj Bhatia
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Dear Shekhar,
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Regards,
Neeraj Bhatia
Oracle Training Professional
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