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POSQL query not returning record
 

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  1. POSQL query not returning record
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    <p>I am trying to retrieve a record from a table with a given field value. The query is:</p> <pre><code>declare @imei varchar(50) set @imei = 'ee262b57-ccb4-4a2b-8410-6d8621fd9328' select * from tblDevices where imei = @imei </code></pre> <p>which returns nothing.</p> <p>If I comment out the where clause all records are returned, including the one I am looking for. The value is clearly in the table field and matches exactly, but I cannot get the where clause to work.</p> <p>I literally copied the value out of the table to ensure it was correct. </p> <p>I would appreciate any guidance on my mistake.</p> <p><strong>Table def:</strong></p> <pre><code>CREATE TABLE [dbo].[tblDevices]( [id] [int] IDENTITY(1,1) NOT NULL, [create_date] [datetime] NOT NULL, [update_date] [datetime] NOT NULL, [other_id] [int] NULL, [description] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL, [authorized] [int] NOT NULL, [imei] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL, CONSTRAINT [PK_tblDevices] PRIMARY KEY CLUSTERED ( [id] ASC )WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY] ) ON [PRIMARY] </code></pre> <p><strong>Edit</strong></p> <p>Using user2864740 suggestion, I queried the following:</p> <pre><code>select hashbytes('SHA1', imei) as h1 from tblDevices where id =8 returns: 0x43F9067C174B2F2F2C0FFD17B9AC7F54B3C630A2 select hashbytes('SHA1', @imei) as h2 returns: 0xB9B82BB440B04729B2829B335E6D6B450572D2AB </code></pre> <p>So, I am not sure what this means. My poor little brain is having a hard time understanding that A &lt;> A?! What is going on here if it's not a collation issue? How can two identical values not be considered equal?</p> <p><strong>Edit 2</strong></p> <p>this is the table record I want:</p> <pre><code>8 2013-10-22 12:43:10.223 2013-10-22 12:43:10.223 -1 1 ee262b57-ccb4-4a2b-8410-6d8621fd9328 </code></pre>
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    1. USRoy Hinkley
    1. USRoy Hinkley
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    1. CODoes imei and @imei have same data type ? for example nvarchar or varchar ?
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      1. USAmir Keshavarz
    2. CODid you try using `like` instead of = ?
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    3. COYes I tried `Like`, I wrapped @imei with `LTRIM` and `RTRIM`. None worked.
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      1. USRoy Hinkley
 

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