Skip to content

Commit 9d6478b

Browse files
martygubarmartygubar
authored
Merge pull request #5 from malcherm/main
New example JSON
2 parents 31ce3a4 + 99564b4 commit 9d6478b

File tree

2 files changed

+113
-1
lines changed

2 files changed

+113
-1
lines changed

‎sql/README.md

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -26,7 +26,7 @@ Try out these scripts to learn how to get started using Autonomous Database. Sim
2626
|[select-ai-nl2sql.sql](select-ai-nl2sql.sql)|Use natural language to query your data|
2727
|[select-ai-sql-function.sql](select-ai-sql-function.sql)|Use Select AI SQL functions to apply AI to your data. These examples summarize a support chat and make product recommendations based on info in your database|
2828
|[select-ai-rag.sql](select-ai-rag.sql)|Select AI makes it easy to create AI vector pipelines and then ask questions using AI and your organization's knowledge base|
29-
29+
|[json-duality.sql](json-duality.sql)|Autonomous Database allows you to with JSON in many different ways. JSON Collections stored in the database, and JSON Duality Views are a couple of the examples here.|
3030

3131
### Configuration file
3232
Many of the SQL scripts rely on information found in your [config.sql](config.sql) file. Update the config file prior to running any of the scripts.

‎sql/json-duality.sql

Lines changed: 112 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,112 @@
1+
-- Copyright (c) 2024 Oracle and/or its affiliates.
2+
-- Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl/
3+
4+
/* Apply AI SQL function to your data to summarize information, make recommendations and more */
5+
6+
/* PREREQUISITES
7+
Install the sample schema using script
8+
@data-create-sample-schema.sql
9+
*/
10+
11+
/* Working with JSON in Autonomous Database
12+
We can query relational data as JSON and also create JSON Collection tables. Different ways to work with JSON,
13+
flexiblity to work with JSON, and leverage relational tables by using JSON Duality views providing the best of both worlds.
14+
Let's look at a couple of ways of creating JSON collection tables, JSON Duality Views and querying JSON data.
15+
*/
16+
-- JSON Collection
17+
create JSON COLLECTION TABLE MOVIE_BUDGET;
18+
19+
insert into movie_budget values ('{"movie_id": 1,"movie_title":"Avatar","movie_year": 2009,
20+
"sku":"LYG56160","runtime": 162,"cast":["Sam Worthington","Zoe Saldana"],
21+
"studio":["20th Century Studios","Lightstorm Entertainment"]}' );
22+
insert into movie_budget values ('{"movie_id": 2,"movie_title":"Ghostbusters II","movie_year": 1989,
23+
"sku":"FWT19789","runtime": 104,"cast":["Bill Murray","Sigourney Weaver"],
24+
"genre":["Fantasy","Sci-Fi","Thriller","Comedy"]}' );
25+
commit;
26+
--see the JSON collection that has been created along with the ability to query it
27+
select * from movie_budget;
28+
--Let's add budget information to the movies
29+
update movie_budget set data= JSON_TRANSFORM(data, set '$.budgetUnit' = 'Million USD', set '$.budget'=1000000);
30+
commit;
31+
select json_value(data, '$.movie_id') movie_id,json_value(data,'$.budget') budget from movie_budget;
32+
--Change the budget for one of the movies
33+
update movie_budget set data= JSON_TRANSFORM(data, set '$.budget'=(json_value(data,'$.budget') * 2))
34+
where JSON_VALUE(data,'$.movie_id')=2;
35+
commit;
36+
select json_value(data, '$.movie_id') movie_id,json_value(data,'$.budget') budget from movie_budget;
37+
38+
--JSON Duality
39+
/* We can work with our relational tables as JSON Documents by creating a JSON Duality View.
40+
Inserts, updates and deletes can be performed directly against the JSON Duality View and the changes happen on the underlying relational tables.
41+
This means that the JSON documents for these views will be updated without having to maintain each document, and the data is stored relationally
42+
avoiding duplication.
43+
*/
44+
--Simple JSON view on one table
45+
46+
--We need primary keys on the tables that are part of the views
47+
CREATE OR REPLACE JSON RELATIONAL DUALITY VIEW customer_dv AS
48+
customer @insert @update @delete
49+
{
50+
_id : cust_id,
51+
FirstName : first_name,
52+
LastName : last_name,
53+
age : age,
54+
Email : email,
55+
street_address : street_address,
56+
city : city,
57+
postal_code : postal_code
58+
yrs_customer : yrs_customer
59+
pet : pet
60+
}
61+
;
62+
select * from customer_dv;
63+
64+
--JSON Duality View on a couple of tables. We do need primary keys on the tables being used in the views
65+
alter table streams add constraint constraint_name primary key(cust_id,day_id, movie_id);
66+
--JSON of the customers with the movies that they streamed
67+
CREATE OR REPLACE JSON RELATIONAL DUALITY VIEW customer_streams_dv AS
68+
customer @insert @update @delete
69+
{
70+
_id : cust_id,
71+
FirstName : first_name,
72+
LastName : last_name,
73+
age : age,
74+
yrs_customer : yrs_customer
75+
streams : streams @insert @update @delete
76+
[{
77+
cust_id : cust_id
78+
day_id : day_id
79+
genre_id : genre_id
80+
movie_id : movie_id
81+
}]
82+
}
83+
;
84+
select * from customer_streams_dv;
85+
--Pull back the customers watching romance movies
86+
select * from customer_streams_dv
87+
where JSON_VALUE(data,'$.streams.genre_id')=19;
88+
89+
/* Now to insert a new record into customers and streams we can do that through the Duality View.
90+
Here we select first from customer and from streams to show there is no value */
91+
select * from customer where cust_id=555;
92+
select * from streams where cust_id=555;
93+
--Now do an insert to the DV to add a new customer and add a stream
94+
insert into customer_streams_dv values ('{
95+
"_id" : 555,
96+
"FirstName" : "Michelle",
97+
"LastName" : "Jones",
98+
"age" : 36,
99+
"yrs_customer" : 0 ,
100+
"streams" : [{
101+
"day_id" : "2024-11-18T00:00:00",
102+
"genre_id" : 19,
103+
"movie_id" : 3694}]}');
104+
105+
commit;
106+
select * from customer where cust_id=555;
107+
select * from streams where cust_id=555;
108+
--now we have rows in both of the underlying relational tables
109+
110+
/* With the JSON Collections and JSON Duality Views you can use API calls with GET and PUT to work
111+
with the JSON in the database. We have just shown here SQL access to the JSON. */
112+

0 commit comments

Comments
 (0)