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Severity: Warning

Message: fopen(/tmp/ci_session5bac06186ca36069302c6d610fc62e28): failed to open stream: Disk quota exceeded

Filename: drivers/Session_files_driver.php

Line Number: 156

Backtrace:

File: /home/s949hbuup34l/public_html/webphplearn.com/index.php
Line: 292
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /tmp)

Filename: Session/Session.php

Line Number: 140

Backtrace:

File: /home/s949hbuup34l/public_html/webphplearn.com/index.php
Line: 292
Function: require_once

mongoDb where condition
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MongoDb




<p>SELECT * FROM article WHERE author = &quot;Joe Bloggs&quot;;</p>
                                    

db.article.aggregate(
  { $filter : { author : { $eq : "Joe Bloggs" } } }
);

{ name: { $not: { $eq: "Andrea Le" } } }

The following query filter uses the $lte operator to find all documents

where version is less than or equal to 4.

{ version: { $lte: 4 } }

The following query filter uses the $gt operator and Date() method to find all 
documents where the dateCreated field value is later than June 22nd, 2000.

{ dateCreated: { $gt: Date('2000-06-22') } }

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