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Current Oracle Spatial Blog Articles

    Using Oracle's ST_GEOMETRY type hierarchy with SDO_GEOMETRY: ST_PointN and ST_NumPoints
    Making Sdo Geometry Metadata
    SC4O Test log
    The Frontage Problem: Creating references from land parcel street frontage boundary to point in street
    Scheduling the Export of Spatial Data in Oracle to a Shapefile each night
    Oracle CENTROID package update
    Book: "Applying And Extending Oracle Spatial"
    Create Polygons and Linestrings From Bearings And Distances (COGO)
    Simple Implementation Of Travelling Salesman Problem
    ST_Densify for Object PLSQL
    PLSQL ST_AsEWKT and ST_FromWKT Functions For Oracle (any version)
    Useful Package of Wrapper Functions for Sdo_Util.AffineTransforms
    GeoRaptor 4.x Update 2 (Project has Stalled)
    Tip: Drop that Spatial Index!
    Convert Single Geometry to Multi-part Geometry in Oracle Spatial
    Optimized Rectangle to 5 Point Polygon
    Centroid Package now supports Y ordinate seeding
    Convert GeoJSON document to Sdo_Geometry objects
    Function That Returns a Compass Point From a Whole Circle Bearing
    Playing around with Centroids by using different seed values
    Simple Oracle C Sprintf or Java String.format
    Some Oriented Point Functions
    Extracting Inner Rings Changed Ordinate Ordering: A Trap For Players Who Don't Read Documentation!
    PLS-00306: wrong number or types of arguments in call to 'SDO_GEOMETRY'
    Converting Google Earth Formatted Longitude/Latitude points to decimal degrees
    Oracle Business Intelligence Warehousing and Analytics - Spatial Summit
    How far inside, is inside? Measuring actual distance.
    Noding and building a polygon from single, overlapping linestrings
    Analyzing Spatial Query Performance Improvements in Oracle Spatial and Graph 12c Through Cross-Vendor Comparison
    ST_VertexN / ST_PointN - Extracting a specific point from any geometry
    Convert Single Point stored in SDO_ORDINATES to SDO_POINT_TYPE
    Aggregate APPEND Islands and XOR polygons
    Circular Arcs in Geodetic Polygons
    Some SDO_GEOMETRY/DIMINFO handling functions
    Changing all DIMINFO sdo_tolerance values for all metadata records in one go.
    Building Polygons from Incomplete Linestrings using ST_PolygonBuilder
    Computing Cardinal Directions to nearby geometries
    Intersecting two aggregated polygon layers with SC4O
    Spatial and Oracle 12c
    Update Triggers and SDO_GEOMETRY Equality
    Duplicate Geometry data and Data Models
    CENTROID package update
    How to calculate cumulative length of a linestring
    Compute Location from known Lat/Long point using delta easting and northing in miles
    Sorting SDO_GEOMETRY data using the ORDER BY clause of a SELECT statement
    Creating linestrings from points
    Rounding Coordinates or Ordinates in SDO_GEOMETRY
    Effects of Sdo_Geometry Ordinate Precision on Performance
    Effects of Sdo_Geometry Ordinate Precision on Storage
    The Spatial filtering of geometries: The effect of tolerances on relationships
    Application of Delaunay Triangulation and Inverse Distance Weighting (IDW) in Oracle for Soils Interpolation
    Selecting all SDO_GTYPE values for all tables/sdo_geometry columns in a schema
    CENTROID package - Tips for Use
    Announcing the Spatial Companion For Oracle (SC4O)
    Filtering Rings (Oracle Spatial)
    Splitting a polygon using one or more linestrings
    isValid, isSimple, Dimension and CoordDim methods for SDO_Geometry
    Line Merging or Collecting lines together: ST_LineMerger
    ST_DeleteVertex for Oracle SDO_Geometry based on Jaspa/JTS
    3D/4D and SRID aware Conversion functions for SDO_Geometry: WKT and EWKT
    Topological vs Non-Topological Simplification/Generalization of Aggregated Area Geometies in Oracle
    Filtering very short linestrings via bitmap function index
    CENTROID For Oracle
    Gridding a sdo_geometry line/polygon object (Oracle)
    Finding centre and radius of a circular geometry
    Constraining geometry type for sdo_geometry column in a table.
    CASE Statements and SDO_GEOMETRY
    The Power of Constraints and Indexes for Spatial Constraints: stopping duplicate points
    Replacement for SDO_GEOM.RELATE - ST_Relate based on JTS
    Changing Oracle Spatial Index Parameters on existing index
    Writing Excel Spreadsheets files from within the Oracle database using Java and PL/SQL
    Writing xSV (eg csv) files from within the Oracle database using Java and PL/SQL
    A simple spike finder for Spatial/Locator
    JTS Java class compilation for 11g and above
    Random Spatial Search Procedure
    Geometry Snapping using JTS in Oracle
    Exposing JTS's MinimumBoundingCircle functionality
    Exposing JTS's Densifier functionality
    Using JTS's Comparison Functions - HausdorffSimilarityMeasure & AreaSimilarityMeasure with SDO_GEOMETRY
    Free JTS-based Area/Length Functions
    Handy way of systematically fixing polygon geometries with 13349 and other errors
    Standalone CENTROID package now available for download
    Free Union, Intersection, Xor and Difference Functions for Oracle Locator - Part 4 Processing Geodetic data
    Configurable Buffer: JTS and Oracle
    Free Union, Intersection, Xor and Difference Functions for Oracle Locator - Part 3
    Free Union, Intersection, Xor and Difference Functions for Oracle Locator - Part 2
    Free Union, Intersection, Xor and Difference Functions for Oracle Locator - Part 1
    Building Lines into Polygons in Oracle Locator / Spatial
    Finding Intersection Points between Line and Polygon
    Free version of sdo_length
    Alternative to my SQL based GetNumRings function
    External Tables and SDO_Geometry data.
    layer_gtype keyword issue when indexing linear data on 11g
    String Tokenizer for Oracle
    Free Aggregate Method for Concatenating 2D Lines in Oracle Locator 10g
    Reducing 5 Vertex Polygon to Optimized Rectangle
    Square Buffer
    Converting decimal seconds to string
    Valid conversion unit values for Oracle sdo_geom.sdo_length()
    Removing Steps in Gridded Vector Data - SmoothGrid for Oracle
    Oracle Spatial DISJOINT search/filtering
    Creating SDO_Geometry from geometric data recorded in the columns of a table
    Concave Hull Geometries in Oracle 11gR2
    Projecting SDO_GEOM_METADATA DIMINFO XY ordinates
    Instantiating MDSYS.VERTEX_TYPE
    New PL/SQL Packages - Rotate oriented point
    GeoRaptor Development Team
    Fast Refreshing Materialized View Containing SDO_GEOMETRY and SDO_GEOM.SDO_AREA function
    Performance of PL/SQL Functions using SQL vs Pure Code
    Implementing the BEST VicGrid Projection in Oracle 10gR2
    ORA-13011 errors when using SDO_GEOM.VALIDATE_LAYER_WITH_CONTEXT()
    Extract Polygons from Compound Polygon
    Detecting sdo_geometries with compound (3-point Arcs) segments
    GEOMETRY_COLUMNS for Oracle Spatial
    Convert GML to SDO_Geometry in Oracle 10gR2
    Spatial Sorting of Data via Morton Key
    Swapping Ordinates in an SDO_GEOMETRY object
    New To_3D Function
    Extend (Reduce/Contract/Skrink) Function for Oracle
    Loading and Processing GPX 1.1 files using Oracle XMLDB
    Loading Spatial Data from an external CSV file in Oracle
    Calling the Oracle Spatial shapefile loader from within the Oracle database itself
    Implementing SDO_VertexUpdate/ST_VertexUpdate for Oracle
    Implementing SDO_RemovePoint/ST_RemovePoint for Oracle
    Implementing SDO_AddPoint/ST_AddPoint for Oracle
    ESRI ArcSDE Exverted and Inverted Polygons and Oracle Spatial
    Funky Fix Ordinates By Formula
    Implementing a SetPoint/ST_SetPoint function in Oracle
    Implementing an ST_SnapToGrid (PostGIS) function for Oracle Spatial
    Generating random point data
    Implementing an Affine/ST_Affine function for Oracle Spatial
    Implementing a Scale/ST_Scale function for Oracle Spatial
    Implementing a Parallel/ST_Parallel function for linestring data for Oracle Spatial
    Implementing a Rotate/ST_Rotate function for Oracle Spatial
    Limiting table list returned when connecting to Oracle Database using ODBC
    ST_Azimuth for Oracle: AKA Cogo.Bearing
    Implementing a Translate/ST_Translate/Move function for Oracle Spatial
    Elem_Info_Array Processing: An alternative to SDO_UTIL.GetNumRings and querying SDO_ELEM_INFO itself
    Minumum Bounding Rectangle (MBR) Object Type for Oracle
    How to extract elements from the result of an sdo_intersection of two polygons.
    How to restart a database after failed parameter change
    Fixing failed spatial indexes after import using data pump
    generate_series: an Oracle implementation in light of SQL Design Patterns
    Multi-Centroid Shootout
    Oracle Spatial Centroid Shootout
    On the use of ROLLUP in Oracle SELECT statements
    Surrounding Parcels
    Spatial Pipelining
    Using Oracle's SDO_NN Operator - Some examples
    Converting distances and units of measure in Oracle Locator
    Split Sdo_Geometry Linestring at a known point
    Forcing an Sdo_Geometry object to contain only points, lines or areas
    Unpacking USER_SDO_GEOM_METADATA's DIMINFO structure using SQL
    Generating multi-points from single point records in Oracle Spatial
    Object Tables of Sdo_Geometry
    Oracle Locator vs Oracle Spatial: A Reflection on Oracle Licensing of the SDO_GEOM Package
    FAST REFRESHing of Oracle Materialized Views containing Sdo_Geometry columns
    Australian MGA/AMG Zone Calculation from geographic (longitude/latitude) data
    Loading Shapefiles (SHP) into Oracle Spatial
    Oracle Spatial Mapping and Map Rendering Performance Tips
    The significance of sdo_lb/sdo_ub in USER_SDO_GEOM_METDATA: Do I need it?
    Oracle Spatial Forum - Melbourne April 2007
    Layer_GTypes for spatial indexes
    Oracle's SQL/MM Compliant Types
    Tips and Tricks



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All Blog Articles, Data Models and Free Source Code by Simon Greener, The SpatialDB Advisor is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.

Writing Excel Spreadsheets files from within the Oracle database using Java and PL/SQL

Monday October 17 2011 at 06:21

My EXPORTER package + Java code has functions called WriteExcelSpreadsheet that can be used to create and export any SQL SELECT statement to disk as an Excel Spreadsheet using Oracle database’s DBMS_JOB or DBMS_SCHEDULER.

Because Excel Spreadsheets have limited number of rows (65535) and columns (255) per sheet (the maximum size of data in a cell is 32767 characters), control of what I call the overflow of a result-set’s contents across Sheets can be controlled by the _stratification parameters:

If number of rows in result-set is greater than 65535 and _stratification is N (NONE) or V (VERTICAL) then the result-set processing will only output 65535 rows in the first sheet. No more sheets will be created and no more data output.

If _stratification is H (HORIZONTAL) a new sheet is created for the next 65535 rows etc.

If the result-set contains greater than 255 columns and _stratification is set to V (VERTICAL) then the first 255 columns will be in the first sheet, the next 255 in the second sheet etc up to the maximum number of rows that can be output in a SELECT statement.

If greater than 255 columns exist and _stratification is H or N then only the first 255 columns will be output in the first sheet: if greater than 65535 rows also exists then overflow is controlled by _stratification = H or N.

You will note that when exporting a SQL SELECT statement with an SDO_GEOMETRY object that you can specify the export text format for all the SDO_GEOMETRY objects in the result set. This format can be Well Known Text (WKT) or Geography Markup Language (GML) version 2 (version 3 can only be made available for Oracle databases supporting JVM 1.5 or above).

Finally, a number of default date and time formats are made available for the formatting of date, datetime (concatenation of parameters p_dateFormat and p_timeFormat) and time:

  1.   /* 2. Date/Time formats
  2.   */  
  3.   c_DATEFORMAT                CONSTANT varchar2(20) := 'yyyyMMdd';
  4.   c_DATEFORMAT1               CONSTANT varchar2(20) := 'M/d/yy';
  5.   c_DATEFORMAT2               CONSTANT varchar2(20) := 'd-MMM-yy';
  6.   c_DATEFORMAT3               CONSTANT varchar2(20) := 'd-MMM';
  7.   c_DATEFORMAT4               CONSTANT varchar2(20) := 'MMM-yy';
  8.   c_TIMEFORMAT                CONSTANT varchar2(20) := 'h:mm a';
  9.   c_TIMEFORMAT1               CONSTANT varchar2(20) := 'h:mm:ss a';
  10.   c_TIMEFORMAT2               CONSTANT varchar2(20) := 'H:mm';
  11.   c_TIMEFORMAT3               CONSTANT varchar2(20) := 'H:mm:ss';
  12.   c_TIMEFORMAT4               CONSTANT varchar2(20) := 'mm:ss';
  13.   c_TIMEFORMAT5               CONSTANT varchar2(20) := 'H:mm:ss';
  14.   c_TIMEFORMAT6               CONSTANT varchar2(20) := 'H:mm:ss';
You are not limited to these default values. Here is an example of an export.
  1. Prompt Exporting Excel Spreadsheet
  2. BEGIN
  3.   codesys.exporter.writeExcelSpreadsheet(
  5.      p_outputDirectory => 'C:\temp\',
  6.     p_fileName        => 'gutdata',
  7.     p_sheetName       => 'GutData',
  8.     p_stratification  => 'N',
  9.     p_geomFormat      => codesys.EXPORTER.c_WKT_FORMAT,
  10.     p_DateFormat      => codesys.EXPORTER.c_DATEFORMAT,
  11.     p_TimeFormat      => codesys.EXPORTER.c_TIMEFORMAT,
  12.     p_precision       => 7);
  13. End;
  14. /

With the export file looking like….

I hope this helps someone.

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Comment [16]

how can i load data from oracle database to excel file using pl/sql .

Can you suggest me about it.

Thank you very much in advance.

ankit moradiya 19 October 2012, 06:44 #


Only by installing my EXPORTER package and then running PL/SQL like that which I showed in this blog article.

The only other way you can export to a spreadsheet is to use UTL_FILE and export to a CSV file. See http://www.oracle-base.com/articles/9i/generating-csv-files.php for an example.


Simon Greener 19 October 2012, 07:51 #

He Mr.Simon,

From where I can find my exporter package. Should i have todownload this package from the internet? Can you suggest me about it because i am new in java development.

ankit moradiya 19 October 2012, 09:30 #

My problem is:

I have around 1oo different tables having 150 to 200 different fields from oracle database.
I want to export into excel file using sql command.
I am using oracle SQL developer and JSP for web development.
So can you help because I am facing big problem for export.

Thank you very much in advance

ankit moradiya 19 October 2012, 09:54 #


The EXPORTER package is available from my website. I have updated the article to include a hyperlink that takes you to my download page. Fill in your email address and reason and it will take you to the actual links.


Simon Greener 19 October 2012, 23:07 #

Getting this package will be very helpful to me. Thank you.

Kazeem Tewogbade 2 December 2012, 09:57 #

For genereate the Excel

viru 12 July 2013, 13:03 #

To create Excel (xlsx) file using PL/SQL you can use Ora_Excel package. That package has more than 50 features to format exported Excel like font family and size, underline, bold, italic, borders, sizes, sheets, formulas and many other features,

More details and examples you can find on http://www.oraexcel.com

OraExcel 24 July 2013, 17:54 #

I havenot find any link to exported packgage after filling email n reason. Can you please let me know from where we can download

Manish 12 August 2013, 06:01 #

It is in the EXPORTER code and package. Therefore you use this link:

Spatial Companion 4 Oracle (includes EXPORTER)



Simon Greener 12 August 2013, 09:00 #

After downloading that package where should it be kept..!!
Can you suggest

Ritesh 27 June 2014, 18:59 #

For an internal project

Guruprasad S 10 February 2017, 19:50 #


I need to import data into multiple sheets in excel file.
The query will filter the data and load into the tabs.

I am in very much need of the export package.
Thanks a lot in advance

Ankit Vedwal 30 March 2017, 15:57 #


Ankit Vedwal 1 April 2017, 21:32 #


I have an excel file where i past raw data exported from oracle and work further in Pivot able, the exporting and pasting process is i have to do manually. Can you please help me that:

Automatically data export from oracle database and import it in Existing Excel file, where i have already formatted Pivot working.

I’ll be very thankful.

Shahab 28 February 2018, 01:29 #


There is a much more sophisticated product available:


All my code can do is export a SELECT statement to a spreadsheet.
It will not do any merging with existing macros, pivots etc.

All I can suggest is that you export the data (automate using DBMS_SCHEDULER) into a single XLS document in a single sheet (say called ORA_DATA), then build your pivots in a separate sheet referencing the ORA_DATA sheet. Then you can copy/paste fresh data any time you want from a new export into the ORA_DATA sheet.


Simon Greener 28 February 2018, 14:14 #