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This section contains a few examples for querying a SQL property graph with fixed-length and variable-length graph pattern matching queries.
26 mar 2015 · Just make sure that all bind variables are included, e.g.: varDynQuery := 'UPDATE TABLE SET B0 = :A0, B1 = NVL(:A1,B1), B2 = NVL(:A2,B2)'; EXECUTE IMMEDIATE varDynQuery USING. A0, A1, A2; The advantage of this approach is that there is only one query that needs to be parsed, meaning less load on the shared pool.
29 gru 2017 · I am trying to understand how to UPDATE multiple rows with different values and I just don't get it. The solution is everywhere but to me it looks difficult to understand. For instance, two updates into 1 query: UPDATE mytable SET fruit='orange', drink='water', food='pizza' WHERE id=1;
The examples in this article require the following test table. -- provided the statement is issued by a non-SYS user. The declaration section of the WITH clause can be used to define PL/SQL functions, as shown below. FUNCTION with_function(p_id IN NUMBER) RETURN NUMBER IS. BEGIN. RETURN p_id; END;
You can query a SQL property graph using the GRAPH_TABLE operator to express graph pattern matching queries. Graph pattern matching allows you to define a path pattern and match it against a graph to obtain a set of solutions.
6 gru 2017 · The first method we will look at is using a subquery in the SET clause of an UPDATE statement. Let’s say we had a table of products that looked like this: [table id=29 /] It stores a few pieces of information about different products that a company sells. Assume that the company decided to increase the price of the “Couch” product (product id 1).
Use the UPDATE statement to change existing values in a table or in the base table of a view or the master table of a materialized view.
