1. 使用dolphindb创建数据库的时候报错,命令行如下:
login(`admin, `123456)
datafile = "F:/DBData/hist_5min.csv";
dataPath = "F:/DBData/stock";
db = database(directory=dataPath, partitionType=VALUE, partitionScheme=2000.01.01..2030.12.31, engine=`TSDB)
错误为:
db = database(dataPath, VALUE, 2000.01.01 .. 2030.12.31, , "TSDB") => Usage: database(directory, [partitionType], [partitionScheme], [locations], [engine='OLAP'], [atomic='TRANS']).Can't set IoT/TSDB engine for a non-dfs database.
没查到什么此类问题的有用信息。我用的版本是DolphinDB_Win64_V2.00.6_JIT。
2. 创建表格的时候可否设置自增数据呢,比如mysql里创建表格的时候可以设置主键key为auto_increment,也可以设置更新时间为current_datetime,在文档里没看到相应的描述。
3. 我用python接口的时候也存在报错,python版本是3.8.10,ddb版本是DolphinDB_Win64_V2.00.6_JIT,错误为:
E:\Python\Python38\python.exe E:/PycharmProjects/Database/dophindb.py
Traceback (most recent call last):
File "E:/PycharmProjects/Database/dophindb.py", line 1, in <module>
import dolphindb as ddb
File "E:\Python\Python38\lib\site-packages\dolphindb\__init__.py", line 2, in <module>
from .session import session
File "E:\Python\Python38\lib\site-packages\dolphindb\session.py", line 18, in <module>
import dolphindbcpp as ddbcpp
ImportError: DLL load failed while importing dolphindbcpp: 动态链接库(DLL)初始化例程失败。
恳请技术大佬指点,万分感谢,也欢迎大家分享使用心得体会。