SQLITE源码剖析(11)
声明：本SQLite源码剖析系列为刘兴(http://deepfuture.iyunv.com/)原创，未经笔者授权，任何人和机构不能转载**应用程序必须在关闭sqlite3对象前，
**所有的与该对象相关的，必须所有的与该对象相关的
** (BLOB大二进制句柄)
** Applications must all
** and all associated with
** the object prior to attempting to close the object. ^If
** sqlite3_close() is called on a that still has
** outstanding or , then it returns
** SQLITE_BUSY.
**如果sqlite3_close()在数据库连接被调用，该数
**据库连接中仍有显式的，则返回
**SQLITE_BUSY。当事务打开时，调用sqlite3_close()，事务自动回滚。
** ^If is invoked while a transaction is open,
** the transaction is automatically rolled back.
**sqlite3_close(C)的C参数可以是NULL指针或从sqlite3_open()、sqlite3_**open16()、sqlite3_open_v2()获取的对象指针
**使用NULL参数调用sqlite3_close()为没负作用的空操作
** The C parameter to must be either a NULL
** pointer or an object pointer obtained
** from , , or
** , and not previously closed.
** ^Calling sqlite3_close() with a NULL pointer argument is a
** harmless no-op.
*/
SQLITE_API int sqlite3_close(sqlite3 *);
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