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Postgres: Convert varchar to text...

Conversion failed when converting the varchar value '1.1' to data type int...

MySQL too long varchar truncation/error setting...

Postgresql - change the size of a varchar column to lower length...

What size to pick for a (n)varchar column?...

How can I trim certain characters from a string in sql?...

Changing the maximum length of a varchar column?...

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Cast produces 'Returned type character varying does not match expected type character varying(8)...

What is the string length of a GUID?...

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Hive Alter table column size in VARCHAR...

How does MySQL varchar know how many bytes indicate the length?...

Equivalent of varchar(max) in MySQL?...

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Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?...

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Converting a comma-separated varchar to decimal...

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Inserting into Mysql master table of very large varchar fields...

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