针对你提出的问题“sql rowid datatype does not match return rowid datatype”,我们可以从以下几个方面进行分析和解答: 1. 理解SQL ROWID数据类型 在SQLite等数据库中,ROWID是一个特殊的列,它唯一地标识表中的每一行。默认情况下,每个表都有一个隐式的ROWID列,即使你没有在表定义中显式地指定它。ROWID的值...
function rowid_relative_fno(row_id IN rowid, ts_type_in IN varchar2 default 'SMALLFILE') return number; 函数ROWID_BLOCK_NUMBER介绍: extracts the block number from a ROWID. 参数: row_id - ROWID to be interpreted ts_type_in - type of tablespace which this row bel...
The restricted ROWID pseudocolumn is returned to client applications in the form of an18-character string with a hexadecimal encoding of the datablock, row, and datafile components of the ROWID. 1.2Extended ROWID The extended ROWID datatypeincludes the data in the restricted rowid plus a data ob...
SQL>select data_object_idfrom Dba_objects@mail139.localdomainwhere object_name='OS_USER_BEHAVIOR_MONTH'and subobject_name='OS_USER_BEHAVIOR_MONTH2012M12' 2 ; DATA_OBJECT_ID --- 218043 --获取远程库的最小,最大rowid: SQL>insertinto rowid_os_user_behavior_201212(id,rowid_min,rowid_max,FLAG...
SQL>DECLARE v_rowid_type NUMBER; v_OBJECT_NUMBER NUMBER; v_RELATIVE_FNO NUMBER; v_BLOCK_NUMBERE_FNO NUMBER; v_ROW_NUMBER NUMBER; BEGIN DBMS_ROWID.rowid_info ( rowid_in => 'AAAJVnAANAAAACiAAA', rowid_type => v_rowid_type, object_number => v_OBJECT_NUMBER, ...
而对于聚簇表，由于聚簇特性，不同表上的记录由于存储在相同的簇上，因此会拥有相同的ROWID。数据库的大...
SQL> select ROWID from Bruce_test where rownum<2; ROWID --- --- AAABnlAAFAAAAAPAAA ROWID的格式如下: 数据对象编号 文件编号 块编号 行编号 OOOOOO FFF BBBBBB RRR 我们可以看出,从上面的rowid可以得知: AAABnl 是数据对象编号 AAF是相关文件
PL/SQL Example This example returns theROWIDfor a row in theEMPtable, extracts the data object number from theROWID, using theROWID_OBJECTfunction in theDBMS_ROWIDpackage, then displays the object number: DECLAREobject_no INTEGER;row_id ROWID;...BEGINSELECT ROWID INTO row_id FROM empWHERE em...
number; begin dbms_rowid.rowid_info(l_rowid,rowid_type,object_number,relative_fno, block_number, row_number); ls_my_rowid :='Object# is :'||to_char(object_number)||chr(10)||'Relative_fno is :'||to_char(relative_fno)||chr(10)||应⽤上⾯的函数如下： SQL> select get_ro...
方法1: --Oracle 根据字段值查询其所在的表.字段 DECLARE CURSOR cur_query IS SELECT table_name, column_name, data_type FROM user_tab_columns; a NUMBER; sql_hard VARCHAR2(); vv NUMBER; BEGIN FOR rec1 IN cur_query LOOP a:=; IF rec1.data_type ='VARCHAR2' OR rec1.data_type ...