tce_answers.answer_description
General info
Entity name tce_answers
Data type Text
Not null YES
Description
Answer description.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_answers.answer_enabled
General info
Entity name tce_answers
Data type Boolean
Not null YES
Default '0'
Description
Indicates when the answer is enabled.
The legal values are:
FALSE = disabled;
TRUE = enabled.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_answers.answer_id
General info
Entity name tce_answers
Data type BigSerial
Not null YES
Description
This number represents the internal answer unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_answers.answer_isright
General info
Entity name tce_answers
Data type Boolean
Not null YES
Default '0'
Description
Indicates when the answer is right.
The legal values are:
FALSE = wrong answer;
TRUE = right answer.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_answers.question_id
General info
Entity name tce_answers
Role name answer_question_id
Data type Bigint
Not null YES
Description
This number represents the internal question unique ID.
Indicates to which question this answer belongs.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_questions.question_description
General info
Entity name tce_questions
Data type Text
Not null YES
Description
Question description (e.g.: What is a carbonate, and what is it used for?).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_questions.question_difficulty
General info
Entity name tce_questions
Data type Smallint
Not null YES
Default 1
Description
Integer value representing the difficulty level of the question.
This value will be multiplied with test_score_right to obtain the question score.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_questions.question_enabled
General info
Entity name tce_questions
Data type Boolean
Not null YES
Default '0'
Description
Indicates when the question is enabled.
The legal values are:
FALSE = disabled;
TRUE = enabled.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_questions.question_id
General info
Entity name tce_questions
Data type BigSerial
Not null YES
Description
This number represents the internal question unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_questions.question_type
General info
Entity name tce_questions
Data type Smallint
Not null YES
Default 1
Description
Indicates the type of question:
1 = single [radiobutton] (only one answer is right);
2 = multiple [checkbox] (more than one answer may be right);
3 = free-answer [textarea] (the user introduces the answer using keyboard).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_questions.subject_id
General info
Entity name tce_questions
Role name question_subject_id
Data type Bigint
Not null YES
Description
This number represents the internal subject unique ID.
Indicates to which subject this question belongs.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_sessions.cpsession_data
General info
Entity name tce_sessions
Data type Text
Not null YES
Description
This attribute stores the encoded user's session data.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_sessions.cpsession_expiry
General info
Entity name tce_sessions
Data type Timestamp
Not null YES
Description
This attribute stores the last time this session experienced any call activity.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_sessions.cpsession_id
General info
Entity name tce_sessions
Data type Varchar(n) (32)
Not null YES
Description
This string represents the user's Web session identification (ID).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_subjects.subject_description
General info
Entity name tce_subjects
Data type Text
Not null NO
Description
Subject description.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_subjects.subject_enabled
General info
Entity name tce_subjects
Data type Boolean
Not null YES
Default '0'
Description
Indicates when the subject is enabled.
The legal values are:
FALSE = disabled;
TRUE = enabled.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_subjects.subject_id
General info
Entity name tce_subjects
Data type BigSerial
Not null YES
Description
This number represents the internal subject unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_subjects.subject_name
General info
Entity name tce_subjects
Data type Varchar(n) (255)
Not null YES
Description
Unique name of the subject (e.g.: History I, History II, Geography).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_subjects.user_id
General info
Entity name tce_subjects
Role name subject_user_id
Data type Bigint
Not null YES
Default 1
Description
Only the administrator and the author of this subject (or his/her group) may update or delete this record.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_test_subject_set.test_id
General info
Entity name tce_test_subject_set
Role name tsubset_test_id
Data type Bigint
Not null YES
Description
ID of the test
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_test_subject_set.tsubset_answers
General info
Entity name tce_test_subject_set
Data type Smallint
Not null YES
Default 0
Description
Number of alternative answers to be selected for the single and multiple questions.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_test_subject_set.tsubset_difficulty
General info
Entity name tce_test_subject_set
Data type Smallint
Not null YES
Default 1
Description
Integer value representing the difficulty level of the question.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_test_subject_set.tsubset_id
General info
Entity name tce_test_subject_set
Data type BigSerial
Not null YES
Description
Unique ID representing a group of subjects for the specified test.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_test_subject_set.tsubset_quantity
General info
Entity name tce_test_subject_set
Data type Smallint
Not null YES
Default 1
Description
Maximum number of questions to be selected.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_test_subject_set.tsubset_type
General info
Entity name tce_test_subject_set
Data type Smallint
Not null YES
Default 1
Description
Indicates the type of question:
1 = MCSA - single [radiobutton] (only one answer is right);
2 = MCMA - multiple [checkbox] (more than one answer may be right);
3 = free-answer [textarea] (the user introduces the answer using keyboard).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_test_subjects.subject_id
General info
Entity name tce_test_subjects
Role name subjset_subject_id
Data type Bigint
Not null YES
Description
This number represents the internal test unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_test_subjects.tsubset_id
General info
Entity name tce_test_subjects
Role name subjset_tsubset_id
Data type Bigint
Not null YES
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_testgroups.group_id
General info
Entity name tce_testgroups
Role name tstgrp_group_id
Data type Bigint
Not null YES
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_testgroups.test_id
General info
Entity name tce_testgroups
Role name tstgrp_test_id
Data type Bigint
Not null YES
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_begin_time
General info
Entity name tce_tests
Data type Timestamp
Not null NO
Description
Date and time (relative to server clock) after which the test will be active.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_description
General info
Entity name tce_tests
Data type Text
Not null YES
Description
Test description.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_duration_time
General info
Entity name tce_tests
Data type Smallint
Not null YES
Default 0
Description
Maximum duration of the test in minutes.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_end_time
General info
Entity name tce_tests
Data type Timestamp
Not null NO
Description
Date and time (relative to server clock) after which the test will be deactivated.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_id
General info
Entity name tce_tests
Data type BigSerial
Not null YES
Description
This number represents the internal test unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_ip_range
General info
Entity name tce_tests
Data type Varchar(n) (255)
Not null YES
Default '*.*.*.*'
Description
Enabled IP addresses.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_max_score
General info
Entity name tce_tests
Data type Numeric(p,s) (10,3)
Not null YES
Default 0
Description
Maximum score that could be reached with this test.
This value could be calculated using the related tables and it's saved for statistical purposes.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_name
General info
Entity name tce_tests
Data type Varchar(n) (255)
Not null YES
Description
Unique name of the test (e.g.: History I 2004, Geography 1st class 2005).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_random_questions
General info
Entity name tce_tests
Data type Boolean
Not null YES
Default '1'
Description
If true the questions will be selected and sorted randomly for each user.
The legal values are:
FALSE = disabled;
TRUE = enabled.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_results_to_users
General info
Entity name tce_tests
Data type Boolean
Not null YES
Default '0'
Description
If true enable users to view their test results immediately after finish.
The legal values are:
FALSE = disabled;
TRUE = enabled.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.test_score_right
General info
Entity name tce_tests
Data type Numeric(p,s) (10,3)
Not null NO
Default 0
Description
Default score for right answers.
This value will be multiplied by question_difficulty value to obtain the question score.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests.user_id
General info
Entity name tce_tests
Role name test_user_id
Data type Bigint
Not null YES
Default 1
Description
User ID of the author of the test.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs.question_id
General info
Entity name tce_tests_logs
Role name testlog_question_id
Data type Bigint
Not null YES
Description
This number represents the internal question unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs.testlog_answer_text
General info
Entity name tce_tests_logs
Data type Text
Not null NO
Description
Text of the answer given by user.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs.testlog_change_time
General info
Entity name tce_tests_logs
Data type Timestamp
Not null NO
Description
Date and time (relative to server clock) indicating when the last answer has been set.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs.testlog_creation_time
General info
Entity name tce_tests_logs
Data type Timestamp
Not null NO
Description
Date and time (relative to server clock) indicating when the question (tuple) has been generated.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs.testlog_display_time
General info
Entity name tce_tests_logs
Data type Timestamp
Not null NO
Description
Date and time (relative to server clock) indicating when the question has been displayed to the user for the first time.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs.testlog_id
General info
Entity name tce_tests_logs
Data type BigSerial
Not null YES
Description
This number represents the internal test-log unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs.testlog_score
General info
Entity name tce_tests_logs
Data type Numeric(p,s) (10,3)
Not null NO
Description
Total score gained by the user for this question.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs.testlog_user_ip
General info
Entity name tce_tests_logs
Data type Varchar(n) (15)
Not null NO
Description
IP address of the client computer from where the aswer has been received.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs.testuser_id
General info
Entity name tce_tests_logs
Role name testlog_testuser_id
Data type Bigint
Not null YES
Description
This number represents the internal test-user unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs_answers.answer_id
General info
Entity name tce_tests_logs_answers
Role name logansw_answer_id
Data type Bigint
Not null YES
Description
This number represents the internal answer unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs_answers.logansw_order
General info
Entity name tce_tests_logs_answers
Data type Smallint
Not null YES
Default 1
Description
Order of the answer inside the question
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs_answers.logansw_selected
General info
Entity name tce_tests_logs_answers
Data type Boolean
Not null YES
Default '0'
Description
Indicates when this alternative answer has been selected by user.
The legal values are:
FALSE = not selected;
TRUE = selected.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_logs_answers.testlog_id
General info
Entity name tce_tests_logs_answers
Role name logansw_testlog_id
Data type Bigint
Not null YES
Description
This number represents the internal test-log unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_users.test_id
General info
Entity name tce_tests_users
Role name testuser_test_id
Data type Bigint
Not null YES
Description
This number represents the internal test unique ID.
Indicates the test type selected by the user.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_users.testuser_comment
General info
Entity name tce_tests_users
Data type Text
Not null NO
Description
User's optional comment about the test.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_users.testuser_creation_time
General info
Entity name tce_tests_users
Data type Timestamp
Not null YES
Description
Date and time (relative to server clock) indicating the end of the test creation process.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_users.testuser_id
General info
Entity name tce_tests_users
Data type BigSerial
Not null YES
Description
This number represents the internal user-test unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_users.testuser_status
General info
Entity name tce_tests_users
Data type Smallint
Not null YES
Default 0
Check testuser_status IN (0,1,2,3,4)
Description
Numeric code that indicates the user-test status.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_tests_users.user_id
General info
Entity name tce_tests_users
Role name testuser_user_id
Data type Bigint
Not null YES
Description
This number represents the internal user's identification (ID).
Indicates to which user the test belongs.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_user_groups.group_id
General info
Entity name tce_user_groups
Data type BigSerial
Not null YES
Description
This number represents the internal group identification (ID).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_user_groups.group_name
General info
Entity name tce_user_groups
Data type Varchar(n) (255)
Not null YES
Unique YES
Description
Unique name of this group.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_birthdate
General info
Entity name tce_users
Data type Date
Not null NO
Description
Date of birth, year month and day on which user was born.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_birthplace
General info
Entity name tce_users
Data type Varchar(n) (255)
Not null NO
Description
User's place of birth (city or country).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_email
General info
Entity name tce_users
Data type Varchar(n) (255)
Not null NO
Description
User's email address (e.g.: name@domain.com).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_firstname
General info
Entity name tce_users
Data type Varchar(n) (255)
Not null NO
Description
User's real first name (e.g.: Albert, Maria).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_id
General info
Entity name tce_users
Data type BigSerial
Not null YES
Description
This number represents the internal user's identification (ID).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_ip
General info
Entity name tce_users
Data type Varchar(n) (15)
Not null YES
Description
IP address of the client computer from where the user's registration request has been received.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_lastname
General info
Entity name tce_users
Data type Varchar(n) (255)
Not null NO
Description
User's real last name, family name, surname (e.g.: Smith, Einstein).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_level
General info
Entity name tce_users
Data type Smallint
Not null YES
Default 1
Description
The user's level is a numeric value that indicates which resources (pages, modules, services) are accessible by the user.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_name
General info
Entity name tce_users
Data type Varchar(n) (255)
Not null YES
Description
Username, unique name by which a user is identified when accessing a multi-user system.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_password
General info
Entity name tce_users
Data type Varchar(n) (255)
Not null YES
Description
Password, keyword, code word, alphanumeric code that together with the username is used to gain access to this system.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_regdate
General info
Entity name tce_users
Data type Timestamp
Not null YES
Description
User registration date and time relative to server clock.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_regnumber
General info
Entity name tce_users
Data type Varchar(n) (255)
Not null NO
Description
Unique user's registration number (e.g.: school registration number).
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_ssn
General info
Entity name tce_users
Data type Varchar(n) (255)
Not null NO
Description
User's Social Security number (SSN) or other equivalent unique code (e.g.: Codice Fiscale for Italian users)
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_users.user_verifycode
General info
Entity name tce_users
Data type Varchar(n) (32)
Not null NO
Unique YES
Description
Unique code used to verify user's email during remote registration process.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_usrgroups.group_id
General info
Entity name tce_usrgroups
Role name usrgrp_group_id
Data type Bigint
Not null YES
Description
This number represents the internal group unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)


tce_usrgroups.user_id
General info
Entity name tce_usrgroups
Role name usrgrp_user_id
Data type Bigint
Not null YES
Description
This number represents the internal user unique ID.
User-defined variables
Name Value
Attribute Is Array No
Array Dimensions
Generate Unique as unique Index No
Using index tablespace (for Unique)