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How to trim space in a column

edited Jul 14, 2018 5:01AM in Database Administration (MOSC) 5 commentsAnswered

Hello experts,

                       I am in the process of upgrading db component of Customer care and billing 2.4.0.2 to 2.6.0.1.During this upgrade process some of the char filed is converted into varchar2 filed and increasing column length.As a result blank space is added.For example if I have a char(4) filed and may rows contain values with 2/3 charecters for that column then after datatype and length change to varchar2 we see blank pace is added.As a consequence query referencing those columns are failing.I know I have to trim the data and oracle has provided below script which runs for 48 hours and

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