1: #!/usr/local/bin/perl -w
2:
3: =head1 NAME
4:
5: mkdb.pl - a script for creation of new database.
6:
7: =head1 SYNOPSIS
8:
9: mkdb.pl
10:
11:
12: =head1 DESCRIPTION
13:
14: This script will create tables Questions and Tournaments
15: in the B<chgk> databse. If the tables exist, it will ask user whether
16: new tables should be created.
17:
18: =head1 BUGS
19:
20: The database, user and password are hardcoded.
21:
22: =head1 AUTHOR
23:
24: Dmitry Rubinstein
25:
26: =head1 $Id: mkdb.pl,v 1.16 2004/08/28 23:47:41 roma7 Exp $
27:
28: =cut
29:
30:
31: use DBI;
32: use strict;
33: my (@tbl_list, $dbh);
34:
35: sub CheckTable
36: {
37: my ($TabName) = @_;
38: my ($ans);
39:
40: if (scalar(grep(/^$TabName$/i, @tbl_list))) {
41: print "Table $TabName exists. Do you want to delete it? ";
42: $ans = <STDIN>;
43: if ($ans =~ /[yY]/) {
44: $dbh->do("DROP TABLE $TabName");
45: print "deleted table $TabName\n";
46: } else {
47: exit;
48: }
49: }
50: }
51:
52: MAIN:
53: {
54: print "Before connecting to the DB\n";
55:
56: $dbh = DBI->connect("DBI:mysql:chgk", "piataev", "")
57: or die "Can't connect to DB chgk\n" . $dbh->errstr;
58: print "Connected successfully\n";
59:
60: @tbl_list = $dbh->func( '_ListTables' );
61:
62: &CheckTable("Questions");
63: $dbh->do("CREATE TABLE Questions (
64: QuestionId INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
65: KEY QuestionIdKey (QuestionId),
66: ParentId SMALLINT UNSIGNED NOT NULL,
67: KEY ParentIdKey (ParentId),
68: Number SMALLINT UNSIGNED NOT NULL,
69: KEY NumberKey (Number),
70: Type CHAR(5) NOT NULL DEFAULT 'þ',
71: KEY TypeKey (Type),
72: Question TEXT,
73: Answer TEXT,
74: PassCriteria TEXT,
75: Authors TEXT,
76: Sources TEXT,
77: Comments TEXT,
78: Rating TEXT,
79: Topic TEXT,
80: ProcessedBySearch INT
81: )")
82: or die "Can't create Questions table: $!\n";
83:
84: &CheckTable("Tournaments");
85:
86: $dbh->do("CREATE TABLE Tournaments (
87: Id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
88: KEY IdKey (Id),
89: ParentId INT UNSIGNED NOT NULL,
90: KEY ParentIdKey (ParentId),
91: Title TINYTEXT NOT NULL,
92: Number SMALLINT UNSIGNED,
93: QuestionsNum INT UNSIGNED DEFAULT 0,
94: Type ENUM('ç','ô','þ'),
95: Copyright TEXT,
96: Info TEXT,
97: URL TINYTEXT,
98: FileName CHAR(25),
99: Editors TEXT,
100: EnteredBy TEXT,
101: PlayedAt DATE,
102: CreatedAt DATE NOT NULL
103: )")
104: or die "Can't create Tournaments table: $!\n";
105:
106: # CREATE INDEX ParentInd ON Tournaments (ParentId)
107: # CREATE UNIQUE INDEX IdInd ON Tournaments (Id)
108:
109: $dbh->disconnect;
110: }
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