但会被oracle隐式转换-- Print associative array:key_ := map.FIRST;-- (collection methods)Returns first index in collection.WHILEkey_ISNOTNULLLOOP DBMS_Output.PUT_LINE('key:' || key_ || ', value:' || map(key_)); key_ := map.NEXT(key_);-- (collection methods)Returns index that ...
Collection methods 只能用于 PL/SQL,不能在 SQL 中使用 1、The COUNT Method 用于计算 associative array, nested table, or VARRAY 中元素的个数,使用 DELETEd or TRIMmed 将减少 COUNT 定义: FUNCTION COUNT RETURN PLS_INTEGER; 对于初始化了,但不包含元素的 collection 返回 0,对于空的 associative array 也...
The LIMIT Method: 返回 VARRAY 的最大数目限制,如果用于 nested tables or to associative arrays 将返回 NULL The PRIOR and NEXT Methods: 如果应用于初始化了但为空的 COLLECTION 时,返回 null;如果 i 大于等于 COUNT,则 NEXT 返回 null;如果 i 小于等于 FIRST,则 PRIOR 返回 null /* * LIMIT method, ...
It provides many built in methods to work with e.g. a)First: Returns the subscript of the first element in the associative array. b)Last: Returns the subscript of the last element in the associative array. c)Prior: Returns the subscript of the previous element in the associative array. d...
SQL statements are unable to call collection methods. Associative arrays cannot be utilized with EXTEND and TRIM. Functions include EXISTS, COUNT, LIMIT, FIRST, LAST, PRIOR, and NEXT; operations include EXTEND, TRIM, and DELETE. EXISTS, PRIOR, NEXT, TRIM, EXTEND, and DELETE all take collection...
集合是相同数据类型元素的组合,类似于编程语言中的数组。它包含如下三种类型:关联数组Associative array(索引表pl/sqltable)、嵌套表(NestedTable)、变长数组...效的集合类型。唯一不足的一点是它只能用于PL/SQL而不能直接用于数据库。 如何获取真实的执行计划 ...
5572 PostgreSQL doesn’t support object type methods. 5595 AWS SCT can’t convert the ROWID usage. This object uses the ROWID column from the %s table. 5597 AWS SCT can’t convert the ROWID usage. This object uses the ROWID column from the %s table. 5598 Postgr...
(i.e. GetOracleClob and GetOracleBlob methods are enabled). Connection Pool Management - explicitly clear connection pool(s) Metadata Caching in the connection pool Client Identifier property for supporting application context security, such as with VPD Input REF Cursor parameters Dynamic Distributed ...
// Fetch the results in an associative array print ''; while ($row = oci_fetch_array($stid, OCI_RETURN_NULLS+OCI_ASSOC)) { print ''; foreach ($row as $item) { print ''.($item?htmlentities($item):' ').''; } print ''; } print ''; // Close...
After you have generated the WCF client class, you can create a WCF client (instance) and invoke its methods to consume the Oracle E-Business adapter. To create the WCF client, you must specify an endpoint address and a binding. The endpoint address must cont...