Merge pull request #280 from oracle-devrel/ulrike23c-basic

Ulrike 23c basic sql scripts

Author: JesusGitHubOracle

data-platform/core-converged-db/database-23c/23c-basic-examples/README.md

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+# 23c-basic-examples
+
+ Examples to illustrate some SQL features in 23c using the 23c Developer FREE release.
+ 
+
+## Useful Links
+
+### Documentation
+
+- [Oracle Database 23c Free – Developer Release documentation](https://docs.oracle.com/en/database/oracle/oracle-database/23/index.html)
+- [Oracle Database New Features](https://docs.oracle.com/en/database/oracle/oracle-database/23/nfcoa/introduction.html)
+- [Installation Guide for Linux x86-64](https://docs.oracle.com/en/database/oracle/oracle-database/23/xeinl/index.html#Oracle%C2%AE-Database-Free)
+
+### Team Publications
+
+- [Oracle Database 23c Free Developer Release - 10 features you should know](https://blogs.oracle.com/coretec/post/oracle-database-23c-free-developer-sql)
+- [New value constructor in 23c](https://blogs.oracle.com/coretec/post/new-value-constructor-in-23c)
+
+### Blogs
+
+- [Introducing Oracle Database 23c Free – Developer Release](https://blogs.oracle.com/database/post/oracle-database-23c-free)
+
+### LiveLabs Workshops
+
+- coming soon
+
+
+# License
+
+Copyright (c) 2023 Oracle and/or its affiliates.
+
+Licensed under the Universal Permissive License (UPL), Version 1.0.
+
+See LICENSE for more details.

data-platform/core-converged-db/database-23c/23c-basic-examples/alias-in-group.sql

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+REM  Script in 23c: alias-in-group.sql
+
+-- GROUP BY with alias
+
+SELECT to_char(hiredate,'YYYY') "Year", count(*)
+FROM emp
+GROUP BY "Year";

data-platform/core-converged-db/database-23c/23c-basic-examples/annotations.sql

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+REM Script in 23c: annotations.sql
+
+drop table emp_annotated;
+
+create table emp_annotated
+( empno number annotations(identity, display 'person_identity', details 'person_info'),
+  ename varchar2(50),
+  salary number annotations (display 'person_salary', col_hidden))
+  annotations (display 'employee_table')
+/  
+
+-- monitor annotations
+col object_name format a20
+col object_type format a15
+col column_name format a15
+col annotation_value format a25
+col annotation_name format a20
+col domain_owner format a10
+col domain_name format a15
+
+select object_name, object_type, column_name, annotation_name, annotation_value 
+from user_annotations_usage;

data-platform/core-converged-db/database-23c/23c-basic-examples/boolean.sql

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+REM  Script in 23c: boolean.sql
+
+drop table test_boolean;
+
+create table TEST_BOOLEAN
+( name VARCHAR2(100),
+  IS_SLEEPING BOOLEAN);
+
+alter table TEST_BOOLEAN modify (IS_SLEEPING boolean NOT NULL);
+
+alter table TEST_BOOLEAN modify (IS_SLEEPING default FALSE);
+
+insert into TEST_BOOLEAN (name) values ('Mick');
+insert into TEST_BOOLEAN (name, is_sleeping) values ('Keith','NO');
+insert into TEST_BOOLEAN (name, is_sleeping) values ('Ron',1);
+
+
+select name from test_boolean where not is_sleeping;
+
+col name  format a25
+select * from test_boolean;
+
+select dump(is_sleeping) from test_boolean where name = 'Ron';​

data-platform/core-converged-db/database-23c/23c-basic-examples/domain.sql

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+REM Script in 23c: domain.sql
+
+drop domain yearbirth;
+
+create domain yearbirth as number(4)
+     constraint check ((trunc(yearbirth) = yearbirth) and (yearbirth >= 1900))
+     display (case when yearbirth < 2000 then '19-' ELSE '20-' end)||mod(yearbirth, 100)
+     order (yearbirth -1900)
+     annotations (title 'yearformat');
+
+drop table person;
+create table person
+     ( id number(5),
+       name varchar2(50),
+       salary number,
+       person_birth number(4) DOMAIN yearbirth
+      )
+     annotations (display 'person_table'); 
+
+desc person
+
+insert into person values (1,'MARTIN',3000, 1988);
+
+select DOMAIN_DISPLAY(person_birth) from person;
+
+-- monitor domains
+set linesize window
+col object_name format a20
+col object_type format a15
+col column_name format a15
+col annotation_value format a25
+col annotation_name format a20
+col domain_owner format a10
+col domain_name format a15
+
+select * from user_annotations_usage;
+
+col owner format a10
+col name format a15
+
+select * from user_domains;

data-platform/core-converged-db/database-23c/23c-basic-examples/if-not-exists.sql

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+REM Script in 23c: if-not-exists.sql
+
+-- suppose table DEPT exists
+desc dept
+
+-- try several times, no error occurs
+create table if not exists scott.dept (deptno number, dname varchar2(10), loc varchar2(15));
+
+-- create a helper table
+create table dept1 as select * from dept;
+
+-- drop several times, no error occurs
+drop table if exists dept1;

data-platform/core-converged-db/database-23c/23c-basic-examples/update-joins.sql

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+REM Script in 23c: update-joins.sql
+
+-- query column sal
+select e.ename, e.sal from dept d, emp e where e.deptno=d.deptno 
+and d.dname='RESEARCH';
+
+-- update with join
+update emp e set e.sal=e.sal*2
+from dept d
+where e.deptno=d.deptno
+and d.dname='RESEARCH';  
+
+-- query column sal
+select e.ename, e.sal from dept d, emp e where e.deptno=d.deptno 
+and d.dname='RESEARCH';
+
+rollback;

data-platform/core-converged-db/database-23c/23c-basic-examples/update-returning.sql

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+REM Script in 23c: update-returning.sql
+
+SELECT ename, sal FROM emp
+WHERE ename = 'KING';
+
+-- create variables in SQL*Plus and Update with returning
+VARIABLE old_salary NUMBER
+VARIABLE new_salary NUMBER
+
+UPDATE emp
+     SET sal=sal+1000
+     WHERE ename = 'KING'
+     RETURNING OLD sal, NEW sal into :old_salary, :new_salary;
+
+-- check the result
+PRINT old_salary
+PRINT new_salary
+
+rollback;

data-platform/core-converged-db/database-23c/23c-basic-examples/value-constructor.sql

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+REM Script in 23c: value-constructor.sql
+
+-- use it in the FROM clause to generate rows
+SELECT *
+FROM (VALUES (1,'SCOTT'),
+             (2,'SMITH'),
+             (3,'JOHN')
+) t1 (employee_id, first_name);
+
+-- with clause
+with CCCP (c1,c2) as (
+  values (1, 'SCOTT'), (2, 'SMITH'), (3, 'JOHN'))
+select * from cccp;
+
+
+-- create a table and cast it to get the correct length of the column
+drop table if exists cccp;
+
+create table cccp
+as
+SELECT *
+FROM (VALUES (1,'SCOTT'),
+             (2,cast('SMITH' as VARCHAR2(30))),
+             (3,'JOHN')
+) t1 (employeed_id,first_name)
+where 1=2;
+
+desc cccp
+
+- use it to add 3 rows 
+insert into cccp (EMPLOYEED_ID, FIRST_NAME)
+values (1,'SCOTT'),
+        (2,'SMITH'),
+        (3,'JOHN');
+commit;
+
+select * from cccp;