Answer Posted / guest

Cause: An object is compared with NULL using a relational
operator.

Action: Use IS NULL comparison operator.

Please add more information about this Error

When i am connect database through toad,one error occured. ORA-12514: TNS:listener does not currently know of service requested in connect descriptor. plz help me thanks advance.............

2807

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ORA-26084: direct path context already finished

1949

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IMP-00063: Warning: Skipping table "string"."string" because object type "string"."string" cannot be created or has different identifier

2733

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invalid quantity specification negative quantity are not allowed for this item please check this item definition quantity

3385

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ORA-16626: failed to enable specified object

2218

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IMP-00060: Warning: Skipping table "string"."string" because object type "string"."string" does not exist or has different identifier

3171

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ORA-16627: No standby databases support the overall protection mode.

3993

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RMAN-05017: no copy of datafile number found to recover

2410

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ORA-26082: load of overlapping segments on table string.string is not allowed

1768

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ORA-26076: cannot set or reset value after direct path structure is allocated

1970

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IMP-00096: Warning: Skipping table "string"."string" because type synonym "string"."string" cannot be created

1620

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ORA-26032: index string.string loading aborted after string keys

2107

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ORA-07497: sdpri: cannot create trace file 'string'; errno = string.

2805

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ORA-16516: The current state is invalid for the attempted operation.

8820

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ORA-26030: index string.string had string partitions made unusable due to:

1941

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