Oracle database support

Applies to: Dataedo 10.x versions, Article available also for: 24.x (current), 23.x
You are looking at documentation for an older release.
Switch to the documentation for Dataedo 24.x (current).

Supported versions

Oracle 9i R1, 9i R2, 10g R1, 10g R2, 11g R1, 11g R2, 12c R1, 12c R2, 18c, 19c, 21c.

Supported editions

Express, Standard and Enterprise.

Supported schema elements and metadata

Dataedo reads following metadata from Oracle databases.

  • Tables
    • Columns
      • Data type with length
      • Nullable
      • Default value
      • Virtual column specification
    • Primary keys
      • Columns
    • Unique indexes
      • Columns
    • Unique constraints
      • Columns
    • Foreign keys
      • Columns
    • Triggers
      • When triggered
      • Script
  • Views
    • Columns (see tables)
    • Script
    • Primary keys specified on views
    • Unique indexes
    • Foreign keys specified on views
  • Materialized views
    • Columns (see tables)
    • Script
  • Stored procedures
    • Script
    • Parameters
  • Functions
    • Script
    • Parameters
    • Returned value
  • Packages
    • Package functions, their script and paramters
    • Package stored procedures, their script and input/output
  • Dependencies


Dataedo reads and writes Oracle comments from/to following objects:

  • Tables
    • Columns
  • Views
    • Columns

Data profiling

Datedo supports following data profiling in Oracle:

  • Tables
    • Rows count
  • Column distribution
    • Distinct values
    • Non-distinct values
    • Empty
    • NULL
  • Numeric columns profile
    • Minimum value
    • Maximum value
    • Average of values
    • Variance of values
    • Standard deviation
    • Span as difference between min and max value
    • Number of distinct values
  • String columns profile
    • Minimum value as first string in alphabetical order
    • Maximum value as last string in alphabetical order
    • Number of distinct values
    • Minimum string length
    • Maximum string length
    • Average string length
    • Standard deviation of string length values
    • Variance of string length values
  • Date columns profile
    • Min value as earliest date
    • Max value as latest date
    • Span as difference between min and max dates
    • Number of distinct dates
  • Top N values
    • Top 10/100/1000 popular values
    • All values if less than 1000 distinct
    • 10 Random values

Read more about profiling in a Data Profliling documentation.


Following schema elements currently are not supported:

  • Check constraints (vote)
  • Non unique indexes (vote)

Required access level

Importing database objects requires certain access level in documented database. User specified in "Import objects from database" window should at least have "Connect" role, and "Create session" system privilege.

Importing objects definition from different schema requires either SELECT_ANY_DICTIONARY (recommended) or SELECT permission on any table and view and EXECUTE permission on any procedure and function that are to be documented.

No data is altered in source database during a synchronization process.

Following objects are accessed during schema import process:

  • all_constraints
  • all_cons_columns
  • all_objects
  • all_tab_columns
  • all_tab_comments
  • dual

Oracle Client

To connect to Oracle you need to have Oracle Client software installed on PC that you are connecting to Oracle database from.

Supported client software:

9i or newer.


tnsnames.ora configuration file is not used.

32 vs 64 bit

Dataedo release includes 2 executables - 32 bit and 62 bit. Connecting to Oracle requires using the same architecture as your Oracle client. It is not determined by the architecture of workstation Windows.

If you have 32 bit Oracle client run Dataedo (32 bit).

If you have 64 bit Oracle client run Dataedo (64 bit).

Learn more

Connect to Oracle

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