var t= CardService.GetInstance().test("900000000233");
foreach (DataRow row in t.Item2.Rows)
{
foreach (DataRow column in t.Item1.Rows)
{
string columnname = column[0].ToString();
string comments = column[2].ToString();
string value = row[columnname].ToString();
Response.Write(" <tr><td>" + comments + "</td><td>" + value + "</td><td>" + columnname + "</td> </tr>");
}
}
select t.COLUMN_NAME,t.COLUMN_ID,t2.comments
from user_tab_columns t left join user_col_comments t2 on t.COLUMN_NAME=t2.column_name
where t.Table_Name='OM_ORDERCHILD' and t2.Table_Name='OM_ORDERCHILD' order by t.COLUMN_ID
获取表字段：
select *
from user_tab_columns
where Table_Name='用户表'
order by column_name
获取表注释：
select *
from user_tab_comments
where Table_Name='用户表'
order by Table_Name
获取字段注释：
select *
from user_col_comments
where Table_Name='用户表'
order by column_name
/* 获取表：*/
select table_name from user_tables; //当前用户的表
select table_name from all_tables; //所有用户的表
select table_name from dba_tables; //包括系统表
select table_name from dba_tables where owner='zfxfzb'
/*
user_tables：
table_name,tablespace_name,last_analyzed等
dba_tables：
ower,table_name,tablespace_name,last_analyzed等
all_tables：
ower,table_name,tablespace_name,last_analyzed等
all_objects：
ower,object_name,subobject_name,object_id,created,last_ddl_time,timestamp,status等
*/
/* 获取表字段：*/
select * from user_tab_columns where Table_Name='用户表';
select * from all_tab_columns where Table_Name='用户表';
select * from dba_tab_columns where Table_Name='用户表';
/* user_tab_columns：
table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id等
all_tab_columns ：
ower,table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id等
dba_tab_columns：
ower,table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id等
*/
/* 获取表注释：*/
select * from user_tab_comments
/*
user_tab_comments：table_name,table_type,comments
相应的还有dba_tab_comments，all_tab_comments，这两个比user_tab_comments多了ower列。
*/
/* 获取字段注释：*/
select * from user_col_comments
/*
user_col_comments：table_name,column_name,comments
相应的还有dba_col_comments，all_col_comments，这两个比user_col_comments多了ower列。
*/