mysql update add to existing value
mysql> UPDATE tableName SET sometotal = sometotal+10 WHERE Id = 4;mysql update add to existing value
mysql> UPDATE tableName SET sometotal = sometotal+10 WHERE Id = 4;change column in mysql
#Alter is used
#alter table TableName change CurrentColumnName NewColumnName Specification(size);
alter table TableName change name firstname varchar(30);php mysql update all rows in table new values
$idresult = $conn->query("SELECT id FROM pictures");
while ($row = $idresult->fetch_assoc()){
mysqli_query($conn, "UPDATE pictures SET UniqueKey = '$UniqueKey' WHERE id = " . $row['id'];
}mysql change column
ALTER TABLE Persons
ADD DateOfBirth date;Copyright © 2021 Codeinu
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