我继承了一个没有经过充分评论的LQ数据库,我需要了解它正在问答和接受什么。 是否有办法看到<代码>sqlite3_stmt的点名? 能否在<条码>f(条码>或<条码>上向议会印刷?
Thanks
我继承了一个没有经过充分评论的LQ数据库,我需要了解它正在问答和接受什么。 是否有办法看到<代码>sqlite3_stmt的点名? 能否在<条码>f(条码>或<条码>上向议会印刷?
Thanks
最好的办法是追踪汇编的说明。 我在该问题的帮助下找到了解决办法:
qlite3_trace的指挥触发了一种警示,需要加以编码。 一旦追踪被转手,将执行方案的其他部分。
我把我的所有数据库都输入单一类别,我把这一功能作为反馈功能(C功能,而不是一种方法)。
void traceCallback( void* udp, const char* sql )
{
printf("{SQL} [%s]
", sql);
}
我将追踪数据输入了一个内基数据库方法:一旦数据库开放,该数据库就转而使用。
-(void)initializeDatabase
{
NSString *path = [self createEditableCopyOfDatabaseIfNeeded];
// open the db
if (sqlite3_open([path UTF8String], &db) == SQLITE_OK)
sqlite3_trace(db, traceCallback, NULL);
else {
// error - cleanup
sqlite3_close(db);
NSLog(@"Error opening db");
NSLog(@"Path: %@",path);
}
}
This will turn a SQL statement with bound variables into a string. From this:
const char *sql2 = "select a.key, b.key from words a left outer join known_words b on a.key = b.word_id where a.word_foreign = :word_foreign";
为此:
{SQL} [select a.key, b.key from words a left outer join known_words b on a.key = b.word_id where a.word_foreign = bak. ]
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