文档解释 ORA-24374: define not done before fetch or execute and fetch Cause: The application did not define output variables for data being fetched ……

文档解释 ORA-48403: DEFINE or UNDEFINE command has no arguments Cause: DEFINE and UNDEFINE command need users to input the substitution variable nam……

文档解释 ORA-24308: illegal define position Cause: Call to modify attributes was done for a non-existent position Action: Verify that a define has b……

文档解释 ORA-24317: define handle used in a different position Cause: A define was done with an existing handle on a different position. Action: Spe……

文档解释 ORA-24424: Invalid attempt to define at position 0 Cause: An invalid attempt was made to call OCIDefineByPos for position 0. Action: Ensure……

化集群化实现：Redis源码分析 Redis是一款开源的内存数据库，具有高性能、高可用性、支持分布式、支持多种数据结构等特点，广泛应用于互联网领域。本文将通过……

文档解释 ORA-30371: column cannot define a level in more than one dimension Cause: A column was used in the definition of a level after it had alrea……

文档解释 ORA-54036: cannot define referential constraint with ON DELETE SET NULL clause on virtual column Cause: Attempted to specify ON DELETE SET ……

Redis是一个开源的内存数据库，它可以支持多种数据结构，包括字符串、哈希表、列表等。其快速读写、高可用性、数据持久化等特点，使得Redis成为许多互联网公司……

Linux函数返回值深度剖析 Linux函数返回值是数据结构中重要的一种组成部分，它是程序员思考问题的重要工具，它也是Linux开发中一个必不可少的概念。 首先，……