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POUpdating Nested Embedded Documents in mongodb
 

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  1. POUpdating Nested Embedded Documents in mongodb
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    <p>I am new to mongodb. Plz help me with this.</p> <p>I need a document like this</p> <pre><code> employee{ _id:111, name:xxx, dependents : [ { name:a, age:51, dep_children:[{name:aa}{name:bb}{name:c}] } { name:b, age:52, dep_children:[{name:aa}{name:bb}{name:c}] } { name:c, age:51, dep_children:[{name:aa}{name:bb}{name:cc}] } ] } </code></pre> <p>I am using the below script to migrate data for SQL and update it into mongoDB</p> <p>My code looks something like this:</p> <pre><code> while(personcount&gt;=0) { BasicDBObject doc = new BasicDBObject("_id",ind1.get(count)). append("name",ind2.get(count)); coll.insert(doc); while(dependentcount&gt;0) { BasicDBObject querymongo = new BasicDBObject(); querymongo.put( "name",ind.get(count)); BasicDBObject tenant = new BasicDBObject(); tenant.put("name",indsa.get(innercount) ); tenant.put("age", indsa2.get(innercount)); BasicDBObject update = new BasicDBObject(); update.put("$push", new BasicDBObject("dependents",tenant)); coll.update(querymongo, update,true,true); while(kidcount&gt;0) { BasicDBObject querymongofact = new BasicDBObject(); querymongokid.put( "dependent.name",indsa.get(innercount)); BasicDBObject tenantkid = new BasicDBObject(); tenantkid .put("name",indfact.get(innercountfact) ); BasicDBObject updatekid = new BasicDBObject(); updatekid .put("$push", new BasicDBObject("dependent.dep_children",tenantkid)); coll.update(querymongokid, updatekid ,true,true); } } } </code></pre> <p>when we print querymongokid and updatekid, the data inside it are expected values itself. This code is not throwing any error. But in data base the only dep_children data is not getting updated . I am not getting wt went wrong. please help me </p> <p>Thanks in advance</p>
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