例: 派生PERIOD列を伴うHELP COLUMN - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQLデータ定義言語 構文規則および例

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Published
2021年7月
Language
日本語
Last Update
2021-09-23
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ja-JP/spp1591731285373.ditamap
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ja-JP/wrg1590696035526.ditaval
dita:id
B035-1144
Product Category
Software
Teradata Vantage

ここでは、次に示す派生PERIOD列を含む テーブル定義に対するHELP COLUMNの出力例を示します。

     CREATE TABLE employee (
          eid INTEGER NOT NULL,
          name VARCHAR(100) NOT NULL,
          deptno INTEGER NOT NULL,
          jobstart DATE NOT NULL,
          jobend DATE NOT NULL,
          PERIOD FOR jobduration (jobstart, jobend)
          PRIMARY INDEX(eid);

HELP COLUMNの出力を以下に示します。

     HELP COLUMN employee.jobduration;
Column Name jobduration
Type PD
Nullable ?
Format ?
Max Length 0
Decimal Total Digits ?
Decimal Fractional Digits ?
Range Low ?
Range High ?
UpperCase ?
Table/View? T
Indexed? ?
Unique? ?
Primary? ?
Title ?
Column Constraint ?
Char Type ?
IdCol Type ?
UDT Name ?
Temporal Column N
Current ValidTime Unique ?
Sequenced ValidTime Unique ?
NonSequenced ValidTime Unique ?
Current TransactionTime Unique ?
Partitioning Column N
Column Partition Number 0
Column Partition Format NA
Column Partition AC NC
Security Constraint N
Derived_UDT PP
Derived_UDT_FieldID ?
Column Dictionary Name jobduration
Column SQL Name jobduration
Column Name UEscape ?
Dictionary Title ?
SQL Title ?
Title UEscape ?
UDT Database Dictionary Name ?
UDT Database SQL Name ?
UDT Database Name UEscape ?
UDT Dictionary Name ?
UDT SQL Name ?
UDT Name UEscape ?
Without Overlaps Unique ?
Storage Format ?