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SDO_AGGR_UNION → ; Description Returns a geometry object that is the topological union ( OR operation) of the specified geometry objects. Parameters
Nested Structures and Unions → SQL SELECT empno, sal, comm, deptno INTO:emp_record FROM emp; Also, you cannot use a C union as a … host structure, nor can you nest a union in a structure that is to be used as a host structure.
LEAST_UBOUND with Inverse Groups → upper bound is the highest level, the union of the compartments in the labels, and t he union of the … groups in the labels. With inverse groups, the least upper bound is the highest level, the union of the
SQL Features Where LOBs Cannot be Used → clobCol UNION, INTERSECT, MINUS Note: UNION ALL works for LOBs SELECT clobCol1 from tab1 UNION SELECT
Calculating Subtotals Without CUBE → Just as for ROLLUP, multiple SELECT statements combined with UNION ALL statements could provide the … would mean issuing SELECT statements linked with UNION ALL. So many SELECT statements yield … columns used in a CUBE clause, the greater the savings compared to the UNION ALL approach.
Set Operators → described, including restrictions on these operators, in "The UNION [ALL], INTERSECT, MINUS Operators … ". Table 3-4 Set Operators Operator Returns UNION All rows selected by either query UNION ALL All rows
How the CBO Executes Compound Queries → of its component queries, and then combines the resulting row sources with the union, intersection … and 2-51 illustrate the process. The query in Example 2-49 uses the UNION ALL operator to select all … Executes Compound Queries with UNION ALL SELECT part FROM orders1 UNION ALL SELECT part FROM orders2 … ; Figure 2-7
Materialized Views with Set Operators → has the UNION ALL operator at the top level and each query block in the UNION ALL, meets the … materialized view must include a constant column (known as a UNION ALL marker) that has a distinct value … "Restrictions on Fast Refresh on Materialized Views With the UNION ALL Operator" for detailed restrictions on
SDO_GEOM.SDO_XOR Returns a geometry object that is the topological symmetric difference XOR operation… → SDO_GEOM.SDO_UNION Returns a geometry object that is the topological union (OR operation) of two
Operations That Can Be Parallelized → example, GROUP BY, NOT IN, SELECT DISTINCT, UNION, UNION ALL, CUBE, and ROLLUP, as well as aggregate and table functions.
Recording the Locations of Datafiles, Control Files, and Online Redo Logs → redo log files for the database: SELECT NAME FROM V$DATAFILE UNION ALL SELECT MEMBER FROM V$LOGFILE … UNION ALL SELECT NAME FROM V$CONTROLFILE; Sample output follows: NAME
GROUPING SETS Expression → in the same query. GROUP BY computes all the groupings specified and combines them with UNION ALL … , country_id ) This statement is equivalent to: GROUP BY channel_desc UNION ALL GROUP BY … calendar_month_desc UNION ALL country_id Table 18-3 shows grouping sets specification and equivalent GROUP BY … , c) GROUP BY a UNION
SDO_GEOM.SDO_UNION → that is the topological union ( OR operation) of two geometry objects. Parameters
8 SQL Queries and Subqueries → Queries and Subqueries Creating Simple Queries Hierarchical Queries The UNION [ALL], INTERSECT, MINUS
1.9.1 SDOAGGRTYPE Object Type → of a spatial aggregate function. Figure 1-12 shows a spatial aggregate union ( SDO_AGGR_UNION … distance between the geometries. Figure 1-12 Tolerance in an Aggregate Union Operation Description of … the illustration tol_union.gif In the first aggregate union operation in Figure 1-12, where the … of two rectangles. In the second
MdmHierarchy Class → defined by a database administrator using the OLAP Metadata APIs. Union MdmHierarchy, which … structures is a union MdmHierarchy for time that has two regions, one for the calendar year and … another for the fiscal year. Each region is a level MdmHierarchy. A union MdmHierarchy has an … getHierarchyType method is UNION_HIERARCHY.
Composite Columns → instead equivalent to the following groupings of a UNION ALL: ( year, quarter, month, day ), ( year … BY a, b, c UNION ALL GROUP BY a UNION ALL GROUP BY () Here, (b, c) are treated as a unit and rollup … following: GROUP BY ROLLUP(a, b, c) This would be the following: GROUP BY a, b, c UNION ALL GROUP BY … a, b
Merging Labels with the MERGE_LABEL Function → second character indicates whether to merge using the union or the intersection of the compartments in … the two labels. The third character indicates whether to merge using the union or the intersection of … varchar2(1) L Minimum level First (Level) union_fmt CONSTANT varchar2(1) U Union of the two labels … (compartments) and
Query Rewrite Using Complex Materialized Views → a materialized view complex are: set operators ( UNION, UNION ALL, INTERSECT, MINUS ), START WITH
Applying the Object Model to Remote Tables → ' UNION ALL SELECT d.deptno, d.deptname, address_t(d.deptstreet,d.deptcity,d.deptstate,d.deptzip), CAST … UNION ALL since we cannot have two employees working in more than one department. If we had to deal … with that eventuality, we could use a UNION of the rows. However, one caveat in using the UNION