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Please keep in mind that if either the atsdate or atstime do not combine into a valid datetime, SQL Server will let you know about it with an error message that it could not convert an invalid date/time string.
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Please keep in mind that if either the atsdate or atstime do not combine into a valid datetime, SQL Server will let you know about it with an error message that it could not convert an invalid date/time string.

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Thank you for the assistance
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I have a date and time field I need to convert to true date time field. <br />
<br />
This works but is not recognized at a datetime field with I apply other formulas to it for filtering, such as previous month data, etc...<br />
<br />
atsdate + ' ' + atstime AS AtScene<br />
<br />
returns this value:<br />
<br />
2009-10-30 21:15:00<br />
<br />
Still a string, not datetime<br />
<br />
I am using SQL 2005 and SSRS 2008r2<br />
<br />
Thanks in advance
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I have a date and time field I need to convert to true date time field. 

This works but is not recognized at a datetime field with I apply other formulas to it for filtering, such as previous month data, etc...

atsdate + ' ' + atstime AS AtScene

returns this value:

2009-10-30 21:15:00

Still a string, not datetime

I am using SQL 2005 and SSRS 2008r2

Thanks in advance

Convert date string to datetime

Microsoft SQL Server 2005 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. It includes support for managing XML data and allows a database server to be exposed over web services using Tabular Data Stream (TDS) packets encapsulated within SOAP (protocol) requests.

Microsoft SQL Server 2005

SQL Server Reporting Services (SSRS) is a server-based report generation software system from Microsoft. It can prepare and deliver a variety of interactive and printed reports and is administered via a web interface or its web service. Its web services interface also supports the development of custom reporting applications. Finally, SSRS can also be integrated with SharePoint. SSRS competes with other business intelligence tools, most prominently Crystal Reports.

SSRS

SQL (Structured Query Language) is designed to be used in conjunction with relational database products as of a means of working with sets of data. SQL consists of data definition, data manipulation, and procedural elements. Its scope includes data insert, query, update and delete, schema creation and modification, and data access control.