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mysql update column with value from another table Code Example
mysql update table from another table 
UPDATE tableB
INNER JOIN tableA ON tableB.name = tableA.name
SET tableB.value = IF(tableA.value > 0, tableA.value, tableB.value)
WHERE tableA.name = 'Joe'
Source: stackoverflow.com
mysql update column with value from another table 
/* Update products position by it's brand's position (from options table) 
with Considering the languages */
UPDATE products
INNER JOIN options ON products.brand = options.value
SET products.brand_position = IF(options.lang = products.lang, options.position, products.brand_position)
WHERE options.name = 'pro_brand';



Sql

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Type:
 Code Example
Category:
 Coding
Sub Category:
 Code Example
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