Describes each data element within the bulk data store, such as source organization, application support, data summary, index, catalog, or digests.
描述批量数据存储中的每个数据元素，例如源组织、应用程序支持、数据汇总、索引、目录或摘要。
When the BULK COLLECT clause is included, the statement can return multiple rows; the variable in the INTO clause must be an array, and each row is stored in an array element.
在包括 BULK COLLECT 子句后，该语句可返回多行；INTO 子句中的变量必须是阵列，且每一行存储在一个阵列元素中。
After hydrogen, helium is the second most common element in the universe, with the bulk of it formed during the big bang.
继氢之后，氦作为宇宙第二大常见元素，在宇宙大爆炸时期大量产生。
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