我想用两个不同的值插入相同的记录。我有两个separete表Table-x和Table-Y。
Table-x包含多个邮政编码，Table-y包含其余列。
INSERT into Table-x (id,field1,field2,zip,field3) VALUES (NULL,val1,val2,<Tabley.zipcode>,val3)
我想执行上述语句，直到Table-x有邮政编码
答案 0 :(得分：1)
您可以使用WHERE .... IS NOT NULL：
INSERT into Table-x (id,field1,field2,zip,field3)
SELECT id, field1, field2, zip, field3 FROM Tabley
WHERE Tabley.zipcode IS NOT NULL
答案 1 :(得分：0)
使用public class ARFix : MonoBehaviour {
private string nextScene = "QRScaner";
private bool obbisok = false;
private bool loading = false;
private bool replacefiles = false; //true if you wish to over copy each time
private string[] paths ={
"Vuforia/FriendsJungle_DB.dat",
"Vuforia/FriendsJungle_DB.xml",
};
void Update()
{
if (Application.platform == RuntimePlatform.Android)
{
if (Application.dataPath.Contains(".obb") && !obbisok)
{
StartCoroutine(CheckSetUp());
obbisok = true;
}
}
else
{
if (!loading)
{
StartApp();
}
}
}
public void StartApp()
{
loading = true;
SceneManager.LoadScene(nextScene);
}
public IEnumerator CheckSetUp()
{
//Check and install!
for (int i = 0; i < paths.Length; ++i)
{
yield return StartCoroutine(PullStreamingAssetFromObb(paths[i]));
}
yield return new WaitForSeconds(3f);
StartApp();
}
//Alternatively with movie files these could be extracted on demand and destroyed or written over
//saving device storage space, but creating a small wait time.
public IEnumerator PullStreamingAssetFromObb(string sapath)
{
if (!File.Exists(Application.persistentDataPath + sapath) || replacefiles)
{
WWW unpackerWWW = new WWW(Application.streamingAssetsPath + "/" + sapath);
while (!unpackerWWW.isDone)
{
yield return null;
}
if (!string.IsNullOrEmpty(unpackerWWW.error))
{
Debug.Log("Error unpacking:" + unpackerWWW.error + " path: " + unpackerWWW.url);
yield break; //skip it
}
else
{
Debug.Log("Extracting " + sapath + " to Persistant Data");
if (!Directory.Exists(Path.GetDirectoryName(Application.persistentDataPath + "/" + sapath)))
{
Directory.CreateDirectory(Path.GetDirectoryName(Application.persistentDataPath + "/" + sapath));
}
File.WriteAllBytes(Application.persistentDataPath + "/" + sapath, unpackerWWW.bytes);
//could add to some kind of uninstall list?
}
}
yield return 0;
}}
INSERT INTO...SELECT