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31 Μαΐ 2021 · I need to create a function that allows me to return the same result as a SELECT query and that contains pl/sql code. I tried something really simple : RETURN SYS_REFCURSOR. l_rc SYS_REFCURSOR; OPEN l_rc. FOR SELECT * FROM my_table; RETURN l_rc;
Use a SELECT statement or subquery to retrieve data from one or more tables, object tables, views, object views, materialized views, analytic views, or hierarchies.
To retrieve data from one or more columns of a table, you use the SELECT statement with the following syntax: SELECT column_1, column_2, ... FROM table_name; Code language: SQL (Structured Query Language) ( sql )
How to develop a PL/SQL function and call it in various places such as an assignment statement and an SQL statement.
Single-row functions return a single result row for every row of a queried table or view. These functions can appear in select lists, WHERE clauses, STARTWITH and CONNECTBY clauses, and HAVING clauses. Numeric functions accept numeric input and return numeric values.
This chapter presents the syntax for SQL functions. This chapter includes the following section: A function is a command that manipulates data items and returns a single value. The sections that follow show each SQL function and its related syntax. Refer to Subclauses for the syntax of the subclauses.
SQL statements are the means by which programs and users access data in an Oracle database. The sections that follow show each SQL statement and its related syntax. Refer to Subclauses for the syntax of the subclauses listed in the syntax for the statements.
