caubert / CSCI_3410 (public) (License: CC BY 4.0) (since 2018-05-16) (hash sha1)
Material for Database Class.
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List of commits:
Subject Hash Author Date (UTC)
Quick changes in the first SQL part: check is actually taken into account! b62ed769ef0ebd96ea91e3053246e142b73d524c aubert@math.cnrs.fr 2019-09-09 16:26:17
Added quiz #1 of Fall 2019, plus minor corrections. a5498523b05cb246ce58b05a8951b833a0b0e699 aubert@math.cnrs.fr 2019-08-29 16:23:07
Adding a figure for a quizz, and a possible bug to the list. 6e83297ccb9678296993e605b2f35d0b13a97523 aubert@math.cnrs.fr 2019-08-27 16:20:35
Changed the monospace font, updated instructions to install mariaDB. 3dc6162733e0a373205012869c1ee068ef3e5c91 aubert@math.cnrs.fr 2019-08-16 18:56:37
Few patches to prepare for Fall 2019. 545561b3d47dfe9bff2436f8f2b7e32572cd808a aubert@math.cnrs.fr 2019-08-07 17:12:26
Editing the cycle of design picture 9bd1c3190a71202b88011b831161cf9d6a365237 aubert@math.cnrs.fr 2019-08-07 16:13:03
Test c742ba7590d59e2941f9fa197c9d009d5c642e76 au 2019-07-31 23:56:14
Minor fix in Known bugs and contrib. 19f3adfa1f88e6d12e94868f4eab0b5838d05eb6 aubert@math.cnrs.fr 2019-07-29 20:51:14
Commit 2ed1a8532cbdae46d3feb99cf52f23f2afa144ec aubert@math.cnrs.fr 2019-07-29 19:01:36
Adding the final to the notes. 0e8848a3e67ec49bab5b767e25d6099fd218e417 aubert@math.cnrs.fr 2019-05-20 14:44:54
Added the solution to one of the problem from Exam #2. 625545a335c5dc7b7303355088a3abba999fdf40 aubert@math.cnrs.fr 2019-05-06 16:59:50
Added a solution to one of the problem of Exam #2, and added the last quiz. 4e0ee25d509412e5e455d9ad4c98f7aad8c5a354 aubert@math.cnrs.fr 2019-04-19 15:14:10
A few glitches in the first java programs patched, added the alternative version to the source. 48611244d21515269bae041dc2535b7e08fb5877 aubert@math.cnrs.fr 2019-04-04 22:05:03
patching a few glitches with the java code and the mysql code used in the demo for the first program. 0fcb73dcc60aef476899c4efea092c99dd6027db aubert@math.cnrs.fr 2019-04-04 21:55:55
Tidying up a program. dd409ab3fd6736af4b8adaac284ee101b9770f60 aubert@math.cnrs.fr 2019-04-04 19:02:21
Correcting the chapter on db programming. 484c4a6372056106bae77e48b397c1174738fc26 aubert@math.cnrs.fr 2019-04-04 18:57:50
Added solution to first problem of Exam 2. 45881a9b8ab1e5a0071b58d72362059593365d52 aubert@math.cnrs.fr 2019-04-03 18:38:48
Quick note in Java programming. 625282d4fece1f6a7a617a8c9bcf7c3c856185b3 aubert@math.cnrs.fr 2019-04-02 18:42:48
Added exam #2 0aa6788451b34cb6371fed5a0f719a4ac52cf0c8 aubert@math.cnrs.fr 2019-04-01 18:37:43
Fixing a typo. 502262b742ac86d7b3d5e95a0f9fcd7ca3a6e586 aubert@math.cnrs.fr 2019-03-22 17:35:43
Commit b62ed769ef0ebd96ea91e3053246e142b73d524c - Quick changes in the first SQL part: check is actually taken into account!
Author: aubert@math.cnrs.fr
Author date (UTC): 2019-09-09 16:26
Committer name: aubert@math.cnrs.fr
Committer date (UTC): 2019-09-09 16:26
Parent(s): a5498523b05cb246ce58b05a8951b833a0b0e699
Signing key:
Tree: 2523412ca618437ef2100a5cdb770f0a1d56e63d
File Lines added Lines deleted
notes/code/sql/HW_FACULTY.sql 4 0
notes/lectures_notes.md 16 3
File notes/code/sql/HW_FACULTY.sql changed (mode: 100644) (index 27dd8ad..1769129)
... ... CREATE DATABASE HW_FACUTLY;
8 8
9 9 CREATE TABLE HW_FACULTY.PROF( CREATE TABLE HW_FACULTY.PROF(
10 10 Fname VARCHAR(15), -- No String! Fname VARCHAR(15), -- No String!
11 -- The value "15" vas picked randomly, any value below 255 would
12 -- more or less do the same. Note that declaring extremely large
13 -- values without using them can impact the performance of
14 -- your database, cf. for instance https://dba.stackexchange.com/a/162117/
11 15 Room INT, -- shorthad for INTEGER, are also available: SMALLINT, FLOAT, REAL, DEC Room INT, -- shorthad for INTEGER, are also available: SMALLINT, FLOAT, REAL, DEC
12 16 -- The "REAL" datatype is like the "DOUBLE" datatype of C# (they are actually synonyms in SQL): -- The "REAL" datatype is like the "DOUBLE" datatype of C# (they are actually synonyms in SQL):
13 17 -- more precise than the "FLOAT" datatype, but not as exact as the "NUMERIC" datatype. -- more precise than the "FLOAT" datatype, but not as exact as the "NUMERIC" datatype.
File notes/lectures_notes.md changed (mode: 100644) (index 75fdc6d..4aee7dc)
... ... We know 1. and 2. from the Relational Model, here comes new constraints that can
1238 1238 ~~~{.sqlmysql .numberLines} ~~~{.sqlmysql .numberLines}
1239 1239 CREATE TABLE HURRICANE( CREATE TABLE HURRICANE(
1240 1240 Name VARCHAR(25) PRIMARY KEY, Name VARCHAR(25) PRIMARY KEY,
1241 WindSpeed INT DEFAULT 76,
1241 WindSpeed INT DEFAULT 76 CHECK (WindSpeed > 74 AND WindSpeed < 500),
1242 -- 75mph is the minimum to be considered as a hurricane
1243 -- cf. https://www.hwn.org/resources/bws.html
1242 1244 Above VARCHAR(25) Above VARCHAR(25)
1243 1245 ); );
1244 1246 -- WindSpeed INT CHECK (WindSpeed > 74 AND WindSpeed < 500), -- WindSpeed INT CHECK (WindSpeed > 74 AND WindSpeed < 500),
1245
1247 -- would be parsed but wouldn't have any effect before MariaDB 10.2.1
1248 -- https://mariadb.com/kb/en/library/constraint/#check-constraints
1249 -- Since MariaDB 10.2.1, the CHECK constraint are enforced.
1250 -- INSERT INTO HURRICANE VULES ("Test", 12, NULL);
1251 -- would give:
1252 -- ERROR 4025 (23000): CONSTRAINT `HURRICANE.WindSpeed` failed for `HW_CONSTRAINTS`.`HURRICANE`
1253 -- Note that you could still insert a value of NULL for the wind, and it would not
1254 -- triggered the error.
1255
1256 -- To use the DEFAULT value, use:
1257 -- INSERT INTO HURRICANE VALUES ("TestA", DEFAULT, NULL);
1258
1259
1246 1260 CREATE TABLE STATE( CREATE TABLE STATE(
1247 1261 Name VARCHAR(25) UNIQUE, -- NULL can be inserted Name VARCHAR(25) UNIQUE, -- NULL can be inserted
1248 1262 Postal_abbr CHAR(2) NOT NULL Postal_abbr CHAR(2) NOT NULL
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