type type_name is table of element_type [NOT NULL] index by binary_integer 2.嵌套表 type type_name is table of element_type [NOT NULL] 3.varray type type_name is [varray ¦varying array](max_size) of element_type[NOT NULL] 一,index_by表 TYPE TYPE1 IS TABLE OF VARCHAR2(10) I...
payments reconciled by Oracle Cash Management populating the GL Interface table post through date Posted Invoice Register Posted Payment Register Posting Hold Report reports set of books Unposted Invoice Sweep Program Posting Hold Report Precision Payables option Preliminary Payment Register...
setPlsqlIndexTable() registerIndexTableOutParameter() getOraclePlsqlIndexTable() getPlsqlIndexTable() These methods handle PL/SQL index-by tables as IN, OUT (including function return values), or IN OUT parameters. For general information about PL/SQL syntax, see the PL/SQL User's ...
createindex<index_name>on<table_name>(<column_name>)[tablespace<tablespace_name>]; 1、普通索引 create index index_text_txton test(txt); 2、唯一索引 Oracle 自动在表的主键上创建唯一索引 createunique index <index_name>on <index_name>(<coiumn_name>); 3、位图索引 作用范围及优点: 1、位图索...
You can check index on a table in Oracle using DBA_INDEXES view and using dba_segments you can check size of index in Oracle. To find index on a table and
另外需要说明: 创建了索引并不一定就会使用,oracle自动统计表的信息后,决定是否使用索引,表中数据很少时使用全表扫描速度已经很快,没有必要使用索引 索引的语法 创建索引 CREATE UNIUQE | BITMAP INDEX <schema>.<index_name>ON <schema>.<table_name>(<column_name> | <expression> ASC | DESC,<column_name...
另外需要说明: 创建了索引并不一定就会使用,oracle自动统计表的信息后,决定是否使用索引,表中数据很少时使用全表扫描速度已经很快,没有必要使用索引 索引的语法 创建索引 代码语言:javascript 复制 CREATEUNIUQE|BITMAPINDEX<schema>.<index_name>ON<schema>.<table_name>(<column_name>|<expression>ASC|DESC,<colu...
type num_table is table of hrc_org_rec index by binary_integer; v_example_tab num_table; begin v_example_tab(1).hrc_code:=1002; v_example_tab(1).hrc_descr:='adsfasdg'; --赋值方法 v_example_tab(2).hrc_code:=1003; v_example_tab(2).hrc_descr:='qweqr'; ...
Oracle 12c引入的“TABLE ACCESS BY INDEX ROWID BATCHED”操作,旨在优化SQL语句执行计划。此操作意味着数据库在索引中获取若干rowid,随后尝试按块顺序访问数据行,以提升数据聚集性并减少对同一数据块的访问次数。这样,避免了在不同rowid对应数据行存储于同一数据块时,多次重复读取同一数据块的情况。以往...
Oracle Database 11g Enterprise Edition Release11.2.0.3.0 - 64bit Production SQL> create table dave as selectobject_id,object_name,object_type,created,timestamp,status from all_objects; 表已创建。 SQL> create table dave2 as select * from dave; ...