Using Extensible Indexing → This section provides examples of the steps entailed in a simple but realistic extensible indexing … extensible indexing to achieve the same goal. The resulting query will be simpler. The query will require
4.2.3 Indexing Data → The most efficient time to create indexes is after data has been loaded. In this way, space management becomes simpler, and no index maintenance takes place for each row inserted. SQL*Loader automatically uses this technique, but if you are using other methods to do initial data load, then you may need to create indexes manually. Additionally, you can perform index creation in parallel using the PARALLEL
Presorting Data for Faster Indexing → You can improve the performance of direct path loads by presorting your data on indexed columns. Presorting minimizes temporary storage requirements during the load. Presorting also enables you to take advantage of high-performance sorting routines that are optimized for your operating system or application. If the data is presorted and the existing index is not empty, then presorting minimizes the
3.7 Indexing GeoRaster Data → : Function-based indexes on metadata objects using the Oracle XMLType or Oracle Text document indexing
12.6 Servers and Indexing → Manager in Oracle Enterprise Manager. See Also: Chapter 3, \" Indexing with Oracle Text\" for more information about indexing and index synchronization
3.1.7 Indexing and Views → Oracle SQL standards do not support creating indexes on views. If you need to index documents whose contents are in different tables, you can create a data storage preference using the USER_DATASTORE object. With this object, you can define a procedure that synthesizes documents from different tables at index time. See Also: Oracle Text Reference to learn more about USER_DATASTORE Oracle Text does
3.2 Considerations For Indexing → Formats and Filtering Bypassing Rows for Indexing Document Character Set Document Language Indexing … Special Characters Case-Sensitive Indexing and Querying Language-Specific Features Fuzzy Matching and
1.7.1 R-Tree Indexing → A spatial R-tree index can index spatial data of up to four dimensions. An R-tree index approximates each geometry by a single rectangle that minimally encloses the geometry (called the minimum bounding rectangle, or MBR), as shown in Figure 1-3.
D.2 Indexing → The following sections describe the multilingual indexing features: Multilingual Features for Text
3.1.6 Parallel Indexing → Oracle Text supports parallel indexing with CREATE INDEX. When you enter a parallel indexing … indexing is an I/O intensive operation, parallel indexing is most effective in decreasing your … indexing time when you have distributed disk access and multiple CPUs. Parallel indexing can
3.2.6 Indexing Special Characters → specify that Oracle Text include or exclude hyphen character (-) when indexing a word such as web … indexing. The way you set the lexer to behave for indexing is the way it behaves for query parsing … you want this character to be included in the token during indexing. For example, if you want your
6 Indexing XMLType Data → contains these topics: Oracle XML DB Tasks Involving Indexes Overview of Indexing XMLType Data Indexing … overview of indexing Oracle Database Advanced Application Developer's Guide for information about using indexes in application development
Indexing Repeating (Collection) Elements → In structured storage, a collection is stored as an ordered collection table (OCT) of an XMLType instance, which means that you can directly access its members. Because the structured storage model directly reflects the fine-grained structure of the XML data, you can create indexes that target individual collection members. You must create such indexes manually. The special feature of automatically
9 Extending Spatial Indexing Capabilities → … In other chapters, the focus is on indexing and querying spatial data that is stored in a single … familiar with, or able to learn about, relevant Oracle database features, such as user-defined data types and function-based indexing.
Indexing with a CONTEXT Index → available when building a full-text index. These choices are expressed as indexing preferences. To … use an indexing preference, add the PARAMETERS clause to CREATE INDEX, as shown in Example 12-29.
7.3 Indexing of LRS Data → LRS function must be 3301. 7.3 Indexing of LRS Data If LRS data has four dimensions (three plus the
Overview of Indexing XMLType Data → Database indexes improve performance by providing faster access to table data. The use of indexes is particularly recommended for online transaction processing (OLTP) environments involving few updates. The principle way you index XML data is using XMLIndex. You can also use Oracle Text CONTEXT indexes to supplement the use of XMLIndex.
1.7 Indexing of Spatial Data → Section 5.2. 1.7 Indexing of Spatial Data The introduction of spatial indexing capabilities into the … will be documented as they become available. The following sections explain the concepts and options associated with R-tree indexing.
3.2.3 Bypassing Rows for Indexing → You can bypass rows in your text table that are not to be indexed, such as rows that contain image data. To do so, create a format column in your table and set it to IGNORE. You name the format column in the parameter clause of CREATE INDEX.
3 Indexing with Oracle Text → This chapter provides an introduction to Oracle Text indexing. The following topics are discussed … : About Oracle Text Indexes Considerations For Indexing Creating Oracle Text Indexes Maintaining