gql

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How to delete specific record from Google Datastore (in Java)?

I have some records in datastore, I want to delete a specific record from the table. for example in SQL , we use delete * from table1 where name =\"mike\" what is the equivalent code in java (I m usin[详细]

2022-12-28 14:52 分类：问答
GQL query help - How can I write a query with where clause in GQL ? I am using google appengine datastore

I have three records in a table example: *Usern开发者_开发技巧ames**email**city* Nicknick@example.comLondon[详细]

2022-12-27 11:43 分类：问答
GQL: I'm storing JSON in the DataStore. All json is getting converted to html entities, how to avoid this?

The tittle says most: I\'m stor开发者_如何学JAVAing JSON in the DataStore. All json is getting converted to html entities, how can I avoid this?[详细]

2022-12-26 17:17 分类：问答
How to do batch Google DataStore key lookup query in JDO

I have about 50k entities stored in appengine.I am able to look up an individual record via the GQL admin interf开发者_JAVA百科ace with a query like:[详细]

2022-12-24 09:14 分类：问答
GQL example for server side admin console query with reference property filter

How to construct a GQL query using server side admin datastore viewer, a one that filters on a reference property?[详细]

2022-12-24 07:06 分类：问答
Placement of sorted entry in Google App Engine Datastore

I\'d like to determine what place a particular entry is in, but the appropriate GQL query is escaping me.Ideally I\'d like to know the following details, which seem like they should be known by the Da[详细]

2022-12-21 14:53 分类：问答
Google app engine database values not incrementing

Here is some code that is not working how it is supposed to work. Every time the database is queried, I get either a 0 or 1 value for the options, and the values in database do not increment, even 开发[详细]

2022-12-21 01:14 分类：问答
iPhone app with Google App Engine

I\'ve prototyped an iPhone app that uses (internally) SQLite as its data base.The intent was to ultimately have it communicate with a server via PHP, which would use MySQL as the back-end database.[详细]

2022-12-17 03:20 分类：问答
GQL with two tables

Hello i am doing a very small application in google appengine and 开发者_JAVA百科i use python. My problem is that i have two tables using de db.model (\"clients\" and \"requests\"). The table \"client[详细]

2022-12-15 22:42 分类：问答
How do I query in GQL using the entity key

How do I write a query against the entity key using GQL in the Google App Engine Data Viewer ? In the viewer, the first column (Id/Name) displays as name=_1, in the detail view it shows the key as[详细]

2022-12-15 14:30 分类：问答