Informix数据表结构分析资料整理之字段类型说明和查询SQL语句
查询所有Informix数据表字段类型SQL语句:
select a.tabname,b.colname,b.coltype,
case b.coltype
when '0' then 'CHAR'
when '1' then 'SMALLINT'
when '2' then 'INTEGER'
when '3' then 'FLOAT'
when '4' then 'SMALLFLOAT'
when '5' then 'DECIMAL'
when '6' then 'SERIAL'
when '7' then 'DATE'
when '8' then 'MONEY'
when '9' then 'NULL'
when '10' then 'DATETIME'
when '11' then 'BYTE'
when '12' then 'TEXT'
when '13' then 'VARCHAR'
when '14' then 'INTERVAL'
when '15' then 'NCHAR'
when '16' then 'NVARCHAR'
when '17' then 'INT8'
when '18' then 'SERIAL8'
when '19' then 'SET'
when '20' then 'MULTISET'
when '21' then 'LIST'
when '22' then 'Unnamed ROW'
when '40' then 'LVARCHAR'
when '41' then 'CLOB'
when '43' then 'BLOB'
when '44' then 'BOOLEAN'
when '256' then 'CHAR'
when '257' then 'SMALLINT'
when '258' then 'INTEGER'
when '259' then 'FLOAT'
when '260' then 'REAL'
when '261' then 'DECIMAL'
when '262' then 'SERIAL'
when '263' then 'DATE'
when '264' then 'MONEY'
when '266' then 'DATETIME'
when '267' then 'BYTE'
when '268' then 'TEXT'
when '269' then 'VARCHAR'
when '270' then 'INTERVAL'
when '271' then 'NCHAR'
when '272' then 'NVARCHAR'
when '273' then 'INT8'
when '274' then 'SERIAL8'
when '275' then 'SET'
when '276' then 'MULTISET'
when '277' then 'LIST'
when '278' then 'Unnamed ROW'
when '296' then 'LVARCHAR'
when '297' then 'CLOB'
when '298' then 'BLOB'
when '299' then 'BOOLEAN'
when '4118' then 'Named ROW'
end as coltypename, b.colno from systables a left join syscolumns b on a.tabid=b.tabid where a.tabid>99 and a.tabtype='T' order by a.tabname,b.colno;
informix的字段类型如下: