(单选题)25: Given the EMPLOYEE table definition:
CREATE TABLE employee (
workdept CHAR(30),
salary INTEGER
)
Which of the following is a correct usage of parameter markers in a JDBC
program?
A: String sql =
"UPDATE employee SET salary=salary*?WHERE workdept=?";
statement stmt=con.createStatement(sql);
B: String sql =
"UPDATE employee SET salary=salary*?WHERE workdept=?";
statement stmt=con.createStatement(sql);
C: String sql =
"UPDATE employee SET salary=salary*?WHERE workdept=?";
statement stmt=con.createStatement(sql);
D: String sql =
"UPDATE employee SET salary=salary*?WHERE workdept=?";
statement stmt=con.createStatement(sql);
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