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_SCALE 是小数位数(对于数字类型)。 请将'你的表名'替换为实际的表名。如果你需要查询其他用户下的表,可以使用ALL_TAB_COLUMNS视图,并可能需要添加额外的条件来指定OWNER。 分析并解读查询结果,确定字段类型: 执行上述查询后,你将得到一张包含字段类型信息的表。分析这张表,你可以找到每个字段的数据类型、长度...
+ " uc.data_length COLUMN_LENGTH , " + " uc.DATA_PRECISION DATA_PRECISION, " + " uc.DATA_SCALE DECIMAL_DIGITS, " + " case uc.NULLABLE when 'Y' then '1' else '0' end case NULLABLE," + " uc.DATA_DEFAULT COLUMN_DEF, " + " ucc.comments REMARKS " + "from " + " user_tabl...
可以使用以下代码来整理达梦数据库的数据类型: -- 整理达梦数据库的数据类型SELECTTYPE_NAME,TYPE_ALIAS,TYPE_LENGTH,TYPE_PRECISION,TYPE_SCALEFROMSYS.DBA_TYPES; 1. 2. 3. 以上代码中的TYPE_NAME、TYPE_ALIAS、TYPE_LENGTH、TYPE_PRECISION和TYPE_SCALE分别表示数据类型的名称、别名、长度、精度和刻度。 2.5 ...
在 IoT 场景性能对比测试www.taosdata.com/iot-performance-comparison-influxdb-and-timescaledb-vs...
Responsibilities: - Implement and administer Microsoft native High Availability and Replication technologies as well as those of third parties' in Disaster Recovery and Scale-out scenario. - Create, administer & fine-tune the database backup, restore and archiving strategies and processes. - Proficient...
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1923 ERR_XP_FAIL_TO_SET_RENDER_SCALE 设置图像显示比例参数失败 1924 ERR_XP_ALREADY_START_SERIES_SNATCH 播放通道已经启动连续抓拍操作 1925 ERR_XP_ALREADY_START_RECORD_VIDEO 播放通道已经启动本地录像操作 1926 ERR_XP_ALREADY_START_RECORD_AUDIO 播放通道已经启动录音操作 1927 ERR_XP_NOT_START_SERIES_SN...
+ " uc.DATA_SCALE DECIMAL_DIGITS, " + " case uc.NULLABLE when 'Y' then '1' else '0' end case NULLABLE," + " uc.DATA_DEFAULT COLUMN_DEF, " + " ucc.comments REMARKS " + "from " + " user_tables ut " + "left join USER_TAB_COMMENTS utc " + "on " + " ut.table_name=...
+ " uc.DATA_PRECISION DATA_PRECISION, " + " uc.DATA_SCALE DECIMAL_DIGITS, " + " case uc.NULLABLE when 'Y' then '1' else '0' end case NULLABLE," + " uc.DATA_DEFAULT COLUMN_DEF, " + " ucc.comments REMARKS " + "from " + " user_tables ut " + "left join USER_TAB_COMMENTS...