More New SQL Features

Your SQL Office Hours session will begin soon… More New
SQL Features Coming in Oracle Database Chris Saxon @ChrisRSaxon & @SQLDaily https://www.youtube.com/c/TheMagicofSQL https://blogs.oracle.com/sql

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New SQL Features Coming in Oracle Database SQL Enhancements 1.
New SQL functions 2. Blockchain tables 3. JSON data type C

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| I like pets I like travelling I like SQL I like SQL

| SQL travel pets films Person A 1 0 1 0 Person B 1 1 0 0 bit_and_agg 1 0 0 0

| SQL travel pets films Person A 1 0 1 0 Person B 1 1 0 0 bit_and_agg 1 0 0 0 bit_or_agg 1 1 1 0

| SQL travel pets films Person A 1 0 1 0 Person B 1 1 0 0 bit_and_agg 1 0 0 0 bit_or_agg 1 1 1 0 bit_xor_agg 0 1 1 0

Bit Aggregations

| Function bit_and_agg Bitwise AND bit_or_agg Bitwise OR bit_xor_agg Bitwise XOR

| num value SQL travel pets films Person A 10 1 0 1 0 Person B 12 1 1 0 0 bit_and_agg 8 1 0 0 0 bit_or_agg 14 1 1 1 0 bit_xor_agg 6 0 1 1 0

| Find who bought products X, Y, and Z Ryan McGuire / Gratisography

| select customer_id, bit_and_agg ( bin_to_num ( prod_1, prod_2, prod_3, ... ) ) from ( select … ) pivot ( count (*) for product_id in ( ... ) ) group by customer_id;

| Find who bought products X, Y, and Z Ryan McGuire / Gratisography …and identical baskets

Checksum Function

| checksum ( <expr> )

| select cksm from ( select order_id, checksum ( product_id || quantity || ... ) cksm from order_items group by order_id ) group by cksm having count (*) > 1

| select cksm from ( select order_id, checksum ( product_id || quantity || ... ) cksm from order_items group by order_id ) group by cksm having count (*) > 1;

| Find who bought products X, Y, and Z Ryan McGuire / Gratisography …and graph basket value …and identical baskets

| £0.00 £10.00 £20.00 £30.00 Number of Orders Basket value Trend What does the tail look like? mode median mean

Statistical Functions

| Formula Meaning Skewness σ ( − ҧ )3 (σ − ҧ 2 )3/2 3rd moment (excess) Kurtosis σ ( − ҧ )4 (σ − ҧ 2 )2 − 3 4th moment

| WTF does that mean?! Ryan McGuire / Gratisography

| Formula Meaning Skewness σ ( − ҧ )3 (σ − ҧ 2 )3/2 Which side is the tail? (excess) Kurtosis σ ( − ҧ )4 (σ − ҧ 2 )2 − 3 Are there outliers?

| £0.00 £10.00 £20.00 £30.00 Number of Orders Basket value Trend Skew ~ 0.5 Kurtosis ~ 1.2

| £0.00 £10.00 £20.00 £30.00 £40.00 £50.00 £60.00 £70.00 £80.00 Number of Orders Basket value Trend Skew = positive Kurtosis = "large"

| £0.00 £10.00 £20.00 £30.00 £40.00 £50.00 £60.00 £70.00 £80.00 Number of Orders Basket value Trend Skew = negative Kurtosis = "large"

| DEMO

| blogs.oracle.com/sql www.youtube.com/c/TheMagicOfSQL @ChrisRSaxon Has anyone changed the data? Ryan McGuire / Gratisography

| alter table … add last_updated timestamp default systimestamp;

| blogs.oracle.com/sql www.youtube.com/c/TheMagicOfSQL @ChrisRSaxon Slide about access for plans? But I want to stop changes! Ryan McGuire / Gratisography

| revoke update, delete on table from user

Blockchain Tables

| create blockchain table blockch ( c1 int, c2 int, … )

| create blockchain table blockch ( c1 int, c2 int, … ) no drop until 16 days idle

| create blockchain table blockch ( c1 int, c2 int, … ) no drop until 16 days idle no delete until 16 days after insert 16 is the min!

| create blockchain table blockch ( c1 int, c2 int, … ) no drop until 16 days idle no delete until 16 days after insert hashing using "SHA2_512" version "v1"

| delete blockch; ORA-05715: operation not allowed on the blockchain table

| delete blockch; ORA-05715: operation not allowed on the blockchain table update blockch set c1 = 1; ORA-05715: operation not allowed on the blockchain table

| alter table blockch add cnew int; ORA-05715: operation not allowed on the blockchain table

| alter table blockch add cnew int; ORA-05715: operation not allowed on the blockchain table rename blockch to blockch_old; ORA-05715: operation not allowed on the blockchain table

| Let's store data as { JSON }! Ryan McGuire / Gratisography

| create blockchain table blockch ( block_id int primary key, json_data blob not null ) no drop until 16 days idle no delete until 16 days after insert hashing using "SHA2_512" version "v1"

{ JSON } Data Type

| create blockchain table blockch ( block_id int primary key, json_data json not null ) no drop until 16 days idle no delete until 16 days after insert hashing using "SHA2_512" version "v1"

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