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I have two tables, both have a lenght_of_time column, and both have callID linking them.<br />
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I want to update the field in table A - length_of_time with the value in table B length_of_time where callID is equal and table B length_of_time &lt;&gt;&nbsp;0<br />
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how would i do this - could someone help with the query <br />
<br />
thanks
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I have two tables, both have a lenght_of_time column, and both have callID linking them.

I want to update the field in table A - length_of_time with the value in table B length_of_time where callID is equal and table B length_of_time <> 0

how would i do this - could someone help with the query 

thanks

MS SQL Query + Update field from value of different table

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.

Microsoft SQL Server

Microsoft SQL Server 2008 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. Major improvements include the  Always On technologies and support for unstructured data types.

Microsoft SQL Server 2008

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.