diff options
author | unknown <joerg@mysql.com> | 2004-10-12 16:00:50 +0200 |
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committer | unknown <joerg@mysql.com> | 2004-10-12 16:00:50 +0200 |
commit | 4855ff515267f32070504023d527feb807882aa1 (patch) | |
tree | caea98ac4596cc77479de7ef5a225328eee4cc9f /mysql-test/t/ps_10nestset.test | |
parent | 9ed05da49d26385cdf92144ed09278bcf9fbb6cb (diff) | |
download | mariadb-git-4855ff515267f32070504023d527feb807882aa1.tar.gz |
New tests for prepared statements:
- 'ps_10nestset' uses a "nested set" approach for an employee
hierarchy, then does arithmetic on the "salary" field;
(soon) to be extended by inserts / deletes which imply
mass updates on the "l"/"r" fields showing the set inclusion,
- 'ps_11bugs' will get (some of ?) those bug DB entries which
refer to prepared statements, but whose number does not appear
in a test file comment - so it will also be extended.
Diffstat (limited to 'mysql-test/t/ps_10nestset.test')
-rw-r--r-- | mysql-test/t/ps_10nestset.test | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/mysql-test/t/ps_10nestset.test b/mysql-test/t/ps_10nestset.test new file mode 100644 index 00000000000..2c6009af9de --- /dev/null +++ b/mysql-test/t/ps_10nestset.test @@ -0,0 +1,63 @@ +############################################### +# # +# Prepared Statements test on # +# "nested sets" representing hierarchies # +# # +############################################### + +# Source: http://kris.koehntopp.de/artikel/sql-self-references (dated 1999) +# Source: http://dbmsmag.com/9603d06.html (dated 1996) + +use test; + +drop table if exists personnel; + +# "Nested Set": This table represents an employee list with a hierarchy tree. +# The tree is not modeled by "parent" links but rather by showing the "left" +# and "right" border of any person's "region". By convention, "l" < "r". +# As it is a tree, these "regions" of two persons A and B are either disjoint, +# or A's region is completely contained in B's (B is A's boss), or vice versa. +# See the references for more info. + +create table personnel ( + id INTEGER AUTO_INCREMENT PRIMARY KEY, + emp CHAR(10) NOT NULL, + salary DECIMAL(6,2) NOT NULL, + l INTEGER NOT NULL, + r INTEGER NOT NULL); + +prepare st_ins from 'insert into personnel set emp = ?, salary = ?, l = ?, r = ?'; + +# Initial employee list: +# Jerry ( Bert ( ) Chuck ( Donna ( ) Eddie ( ) Fred ( ) ) ) +set @arg_nam= 'Jerry'; set @arg_sal= 1000; set @arg_l= 1; set @arg_r= 12; +execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ; +set @arg_nam= 'Bert'; set @arg_sal= 900; set @arg_l= 2; set @arg_r= 3; +execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ; +set @arg_nam= 'Chuck'; set @arg_sal= 900; set @arg_l= 4; set @arg_r= 11; +execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ; +set @arg_nam= 'Donna'; set @arg_sal= 800; set @arg_l= 5; set @arg_r= 6; +execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ; +set @arg_nam= 'Eddie'; set @arg_sal= 700; set @arg_l= 7; set @arg_r= 8; +execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ; +set @arg_nam= 'Fred'; set @arg_sal= 600; set @arg_l= 9; set @arg_r= 10; +execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ; + +select * from personnel; + +# Three successive raises, each one is 100 units for managers, 10 percent for others. +prepare st_raise_base from 'update personnel set salary = salary * ( 1 + ? ) where r - l = 1'; +prepare st_raise_mgr from 'update personnel set salary = salary + ? where r - l > 1'; +let $1= 3; +set @arg_percent= .10; +set @arg_amount= 100; +while ($1) +{ + execute st_raise_base using @arg_percent; + execute st_raise_mgr using @arg_amount; + dec $1; +} + +select * from personnel; + +drop table personnel; |