如果不是，如何在bash中执行sqlplus？

Question

I am trying to write a bash function which should delete some entries from table1 if the user enters 1, otherwise remove different entries. My function looks like this:

function reset_db
{
        if [ $usr_input == 1 ]  
        then
        sqlplus -s $USR/$pwd@$SID << EOF

        delete from table1 where component = 'ABC';
        delete from table2 where component = 'ABC';
        exit
EOF
        else if [ $usr_input == 2 ]

        delete from table1 where component = 'XYZ';
        delete from table2 where component = 'XYZ';
        exit
EOF
fi
}

I am getting error: syntax error near unexpected token `fi'

I am sure that it is happening because I am using if-else incorrectly somewhere but not able to figure out a way to fix it.

Also please let me know how can I post code under the same thread if I have any more follow up questions.

Answer 1

您的“ else if”是错误的，正确的语法是“ elif”。

Answer 2

You need to repeat the command in each clause of the if statement:

function reset_db
{
        if [ $usr_input == 1 ]  
        then
        sqlplus -s $USR/$pwd@$SID << EOF

        delete from table1 where component = 'ABC';
        delete from table2 where component = 'ABC';
        exit
EOF
        elif [ $usr_input == 2 ]; then

        sqlplus -s $USR/$pwd@$SID << EOF
        delete from table1 where component = 'XYZ';
        delete from table2 where component = 'XYZ';
        exit
EOF
fi
}

As a simplification, you should refactor this:

reset_db () {
    if [[ $usr_input = 1 ]]; then
      to_delete='ABC'
    elif [[ $usr_input = 2 ]]; then
      to_delete='XYZ'
    else
      return
    fi
    sqlplus -s "$USR/$pwd@$SID" <<EOF
    delete from table1 where component = '$to_delete'
    delete from table2 where component = '$to_delete'  
    exit
EOF
    fi
}