MySQL search value methods
If you want to find a specific value anywhere in a MySQL database (any column, any table), there are a few common approaches—ranging from quick-and-dirty to more systematic. 1️⃣ Search a known table but any column If you know the table but not the column: SELECT * FROM your_table WHERE col1 = 'value' OR col2 = 'value' OR col3 = 'value'; ⚠️ This requires you to list columns manually. 2️⃣ Search all columns of all tables (automatic way) This is the practical solution when you have no idea where the value lives. Step 1: Generate search queries using INFORMATION_SCHEMA SELECT CONCAT( 'SELECT "', TABLE_NAME, '" AS table_name, "', COLUMN_NAME, '" AS column_name FROM ', TABLE_SCHEMA, '.', TABLE_NAME, ' WHERE ', COLUMN_NAME, ' = ''your_value'';' ) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'your_database'; This generates SQL statem...