报错:Update row with Key (id)=(xxxx) multiple times或者duplicate key value violates unique constraint 问题原因:违反唯一性约束,执行UPDATE、INSERT ON CONFLICT或INSERT操作时,主键存在重复数据。 解决方法: 若INSERT语法报错:可以改为INSERT INTO xx ON
· 错误:1456 SQLSTATE: HY000 (ER_PARTITION_MAXVALUE_ERROR) 消息:MAXVALUE只能在最后1个分区定义中使用。 · 错误:1457 SQLSTATE: HY000 (ER_PARTITION_SUBPARTITION_ERROR) 消息:子分区只能是哈希分区,并按键分区。 · 错误:1458 SQLSTATE: HY000 (ER_PARTITION_WRONG_NO_PART_ERROR) 消息:定义了错...
" MAX_LENGTH="25" COLLATION="SQL_Latin1_General_CP1_CI_AS"/> <FIELD ID="3" xsi:type="CharTerm" TERMINATOR="," MAX_LENGTH="30" COLLATION="SQL_Latin1_General_CP1_CI_AS"/> <FIELD ID="4" xsi:type="CharTerm" TERMINATOR="\r\n" MAX_LENGTH="11"/> </RECORD> <ROW> ...
StreamExecutionEnvironment environment = StreamExecutionEnvironment.getExecutionEnvironment(); DataStreamSource<String> source = environment.readTextFile("data/dept.txt"); //所谓的字段重新排序就是查询出来的指定字段顺序可以自定义 StreamTableEnvironment.create(environment).fromDataStream(source,$("f1"))....
group_by_value; 代码语言:txt AI代码解释 结果: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 -[ RECORD 1 ]---+--- group_by_value | 2 row_count | 5 distinct_values | 5 missing_values | 0 fraction_missing | 0 mean | 1112 variance | 373020 min | 590 max | 2070 first_quart...
TYPE file_type IS RECORD ( id BINARY_INTEGER, datatype BINARY_INTEGER, byte_mode BOOLEAN); b、UTL_FILE中相关过程函数的功能说明 FCLOSE Procedure Closes a file FCLOSE_ALL Procedure Closes all open file handles FCOPY Procedure Copies a contiguous portion of a file to a newly created file FFLUSH...
, 'value.format' = 'json' )值得注意的一点是，我们正在使用 record_time 字段来计算水位线—...
Record GetRecord(@key <KeyType>) returns Record; SetRecord(@key <KeyType>, @value Record) returns <UDT_type>; GetString(@key <KeyType>) returns nvarchar(max); SetString(@key <KeyType>, @value nvarchar(max)) returns nvarchar(max); GetDouble(@key <KeyType>) returns float(53); Set...
还添加了反射支持,以支持 postgresql_with 标志和 postgresql_using 标志,这些标志现在将设置在反射的Index对象上,并在Inspector.get_indexes()的结果中以新的“dialect_options”字典的形式呈现。感谢 Pete Hollobon 的拉取请求。另请参见索引存储参数参考文献:#3455 [postgresql] [feature]添加了新的执行选项max_...
SQL3064NThe double-byte code page valuevalue-1in the H record is not compatible with the double-byte code page valuevalue-2for the application. The FORCEIN option was not specified. Explanation The double-byte code page value in the H record is not compatible with the application code page...