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：