Step 1: Select rows where 'player' is 'jack nicklaus'.
| place | 
player | 
country | 
score | 
to_par | 
money | 
| t1 | 
lou graham | 
united states | 
74 + 72 + 68 + 73 = 287 | 
+ 3 | 
playoff | 
| t1 | 
john mahaffey | 
united states | 
73 + 71 + 72 + 71 = 287 | 
+ 3 | 
playoff | 
| t3 | 
frank beard | 
united states | 
74 + 69 + 67 + 78 = 288 | 
+ 4 | 
10875 | 
| t3 | 
ben crenshaw | 
united states | 
70 + 68 + 76 + 74 = 288 | 
+ 4 | 
10875 | 
| t3 | 
hale irwin | 
united states | 
74 + 71 + 73 + 70 = 288 | 
+ 4 | 
10875 | 
| t3 | 
bob murphy | 
united states | 
74 + 73 + 72 + 69 = 288 | 
+ 4 | 
10875 | 
| t7 | 
jack nicklaus | 
united states | 
72 + 70 + 75 + 72 = 289 | 
+ 5 | 
7500 | 
| t7 | 
peter oosterhuis | 
england | 
69 + 73 + 72 + 75 = 289 | 
+ 5 | 
7500 | 
| t9 | 
pat fitzsimons | 
united states | 
67 + 73 + 73 + 77 = 290 | 
+ 6 | 
5000 | 
| t9 | 
arnold palmer | 
united states | 
69 + 75 + 73 + 73 = 290 | 
+ 6 | 
5000 | 
| t9 | 
tom watson | 
united states | 
67 + 68 + 78 + 77 = 290 | 
+ 6 | 
5000 | 
 
Step 2: Select rows where 'country' is 'united states'.
| place | 
player | 
country | 
score | 
to_par | 
money | 
| t7 | 
jack nicklaus | 
united states | 
72 + 70 + 75 + 72 = 289 | 
+ 5 | 
7500 | 
 
 
Step 3: Select rows where 'score' is '72 + 70 + 75 + 72 = 289'.
| place | 
player | 
country | 
score | 
to_par | 
money | 
| t7 | 
jack nicklaus | 
united states | 
72 + 70 + 75 + 72 = 289 | 
+ 5 | 
7500 | 
 
 
Step 4: Use a `CASE` statement to return TRUE if the number of rows is equal to 1, otherwise return FALSE.
| place | 
player | 
country | 
score | 
to_par | 
money | 
| t7 | 
jack nicklaus | 
united states | 
72 + 70 + 75 + 72 = 289 | 
+ 5 | 
7500 |