Privileges for DDL Commands
SYSDBA:
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                     CREATE TABLE 
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                     CREATE INDEX 
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                     DROP INDEX 
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                     DROP TABLE 
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                     ALTER TABLE 
CREATE_ANY_TABLE:
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                     CREATE TABLE 
DROP_ANY_TABLE:
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                     DROP TABLE 
EVOLVE_ANY_TABLE or EVOLVE_TABLE (on $table_name):
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                     ALTER TABLE table_name 
CREATE_ANY_INDEX or CREATE_INDEX (on $table_name):
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                     CREATE INDEX ON table_name 
DROP_ANY_INDEX or DROP_INDEX (on $table_name):
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                     DROP INDEX ON table_name 
SYSOPER:
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                     CREATE USER 
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                     CREATE ROLE 
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                     DROP USER 
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                     DROP ROLE 
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                     ALTER USER 
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                     GRANT 
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                     REVOKE 
DBVIEW:
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                     SHOW TABLE 
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                     SHOW INDEX 
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                     DESCRIBE TABLE 
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                     DESCRIBE INDEX 
SYSVIEW:
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                     SHOW USERS 
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                     SHOW ROLES 
USRVIEW:
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                     SHOW USERS (for self only)