Oracle lets you implement object methods in PL/SQL, Java or C. You can implement type methods in Java or C by providing a call specification in your type. A call spec publishes a Java method or external C function in the Oracle data dictionary. It publishes the routine by mapping its na...
Oracle-Style outer joins in the WHERE clause GROUP BY clause Aggregation extensions HAVING clause QUALIFY clause UNION, INTERSECT, and EXCEPT Example UNION queries Example UNION ALL query Example INTERSECT queries Example EXCEPT query ORDER BY clause Examples with ORDER BY CONNECT BY clause Subquery ex...
8.5.2.2 About Using CREATE TABLE AS SELECT in Parallel Parallel execution enables you execute the query in parallel and create operations of creating a table as a subquery from another table or set of tables. This parallel functionality can be extremely useful in the creation of summary or ...
Migrate Oracle functions and procedures that have more than 100 arguments to PostgreSQL December 12, 2024 Redshift › dg Limitations Amazon Redshift SUPER data type has limitations on maximum size, nesting depth, value length, unsupported operations, casting, and subquery usage. ...
("postgresql://scott:tiger@localhost/test", echo=True) Base.metadata.drop_all(e) Base.metadata.create_all(e) s = Session(e) s.add_all([ A(x=1, y=2), A(x=5, y=4) ]) s.commit() subq = s.query(A).subquery() print s.query(func.row_to_json(as_row(subq))).select_...
代码示例来源:origin: com.querydsl/querydsl-sql @Test @ExcludeIn(FIREBIRD) // too slow public void insert_with_subQuery() { int count = (int) query().from(survey).fetchCount(); assertEquals(count, insert(survey) .columns(survey.id, survey.name) .select(query().from(survey2).select(surve...
“Unable to enlist in the transaction” with Oracle linked server from MS SQL Server [<Name of Missing Index, sysname,>] in non clustered index [Execute SQL Task] Error: The value type (__ComObject) can only be converted to variables of type Object. [ODBC Driver Manager] Data source nam...
“Unable to enlist in the transaction” with Oracle linked server from MS SQL Server [<Name of Missing Index, sysname,>] in non clustered index [Execute SQL Task] Error: The value type (__ComObject) can only be converted to variables of type Object. [ODBC Driver Manager] Data source nam...
Subqueries in aTABLEexpression have these restrictions: The subquery must return a collection type. TheSELECTlist of the subquery must contain exactly one item. The subquery must return only a single collection; it cannot return collections for multiple rows. For example, the subquerySELECTdept_emps...
The name must be unique within the object type (but can be reused in other object types). The datatype can be any Oracle type except LONG and LONG RAW NCHAR, NCLOB, and NVARCHAR2 MLSLABEL and ROWID the PL/SQL-specific types BINARY_INTEGER (and its subtypes), BOOLEAN, PLS_INTEGER...