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==== check if field value was | ==== check if field value was NULL & not equal to some value ==== | ||
# MySQL: [http://stackoverflow.com/questions/17097890/mysql-select-on-fields-containing-null-values MySql select on fields containing null values - Stack Overflow] | # MySQL: [http://stackoverflow.com/questions/17097890/mysql-select-on-fields-containing-null-values MySql select on fields containing null values - Stack Overflow] | ||