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Here's a detailed description of the SYS.USER_EXTERNAL_TABLES view in Oracle E-Business Suite (EBS):

VIEW: SYS.USER_EXTERNAL_TABLES

Purpose:
- Provides information about external tables owned by the current user
- Part of the data dictionary views in Oracle Database
- Displays metadata and configuration details for external tables

Columns:
1. OWNER
- Owner of the external table
- Typically the current user's schema

2. TABLE_NAME
- Name of the external table
- Unique identifier for the external table

3. TYPE
- Type of external table
- Examples: ORACLE_LOADER, ORACLE_DATAPUMP

4. DEFAULT_DIRECTORY
- Default directory object associated with the external table
- Specifies the location of external data files

5. ACCESS_TYPE
- Method of accessing external data
- Can be BLOB, CLOB, FIXED, VARARRAY, etc.

6. REJECT_LIMIT
- Maximum number of rows that can be rejected during data loading
- Helps control data quality and loading process

Key Use Cases:
- Viewing external table configurations
- Troubleshooting data import/export processes
- Auditing external table definitions

Example Query:
```sql
SELECT TABLE_NAME, TYPE, DEFAULT_DIRECTORY
FROM SYS.USER_EXTERNAL_TABLES;
```

Typical Usage in EBS:
- Integrating external data sources
- Data migration and transformation
- Supporting interface and reporting processes