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TexanInParis · Oct 8, 2016 · bff7104 · bff7104
1 parent 9ce49a9
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Showing 5 changed files with 10 additions and 15 deletions.
diff --git a/IBM DB2/Chapter 09/Listing 9.025.sql b/IBM DB2/Chapter 09/Listing 9.025.sql
@@ -14,7 +14,6 @@ FROM ztblQuarters AS Z CROSS JOIN
        E.StartDate, E.ContractPrice
    FROM Agents AS A LEFT JOIN Engagements AS E
     ON A.AgentID = E.AgentID) AS AE
-WHERE AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd
-   OR AE.StartDate IS NULL
-   AND Z.YearNumber = 2015
+WHERE (AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd)
+   OR (AE.StartDate IS NULL AND Z.YearNumber = 2015)
 GROUP BY AgtFirstName, AgtLastName, YearNumber;
diff --git a/Microsoft SQL Server/Chapter 09/Listing 9.025.sql b/Microsoft SQL Server/Chapter 09/Listing 9.025.sql
@@ -15,7 +15,6 @@ FROM ztblQuarters AS Z CROSS JOIN
        E.StartDate, E.ContractPrice
    FROM Agents AS A LEFT JOIN Engagements AS E
     ON A.AgentID = E.AgentID) AS AE
-WHERE AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd
-   OR AE.StartDate IS NULL
-   AND Z.YearNumber = 2015
+WHERE (AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd)
+   OR (AE.StartDate IS NULL AND Z.YearNumber = 2015)
 GROUP BY AgtFirstName, AgtLastName, YearNumber;
diff --git a/MySQL/Chapter 09/Listing 9.025.sql b/MySQL/Chapter 09/Listing 9.025.sql
@@ -14,7 +14,6 @@ FROM ztblQuarters AS Z CROSS JOIN
        E.StartDate, E.ContractPrice
    FROM Agents AS A LEFT JOIN Engagements AS E
     ON A.AgentID = E.AgentID) AS AE
-WHERE AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd
-   OR AE.StartDate IS NULL
-   AND Z.YearNumber = 2015
+WHERE (AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd)
+   OR (AE.StartDate IS NULL AND Z.YearNumber = 2015)
 GROUP BY AgtFirstName, AgtLastName, YearNumber;
diff --git a/Oracle/Chapter 09/Listing 9.025.sql b/Oracle/Chapter 09/Listing 9.025.sql
@@ -14,7 +14,6 @@ FROM ztblQuarters Z CROSS JOIN
        E.StartDate, E.ContractPrice
    FROM Agents A LEFT JOIN Engagements E
     ON A.AgentID = E.AgentID) AE
-WHERE AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd
-   OR AE.StartDate IS NULL
-   AND Z.YearNumber = 2015
+WHERE (AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd)
+   OR (AE.StartDate IS NULL AND Z.YearNumber = 2015)
 GROUP BY AgtFirstName, AgtLastName, YearNumber;
diff --git a/PostgreSQL/Chapter 09/Listing 9.025.sql b/PostgreSQL/Chapter 09/Listing 9.025.sql
@@ -14,7 +14,6 @@ FROM ztblQuarters AS Z CROSS JOIN
        E.StartDate, E.ContractPrice
    FROM Agents AS A LEFT JOIN Engagements AS E
     ON A.AgentID = E.AgentID) AS AE
-WHERE AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd
-   OR AE.StartDate IS NULL
-   AND Z.YearNumber = 2015
+WHERE (AE.StartDate BETWEEN Z.QuarterStart AND Z.QuarterEnd)
+   OR (AE.StartDate IS NULL AND Z.YearNumber = 2015)
 GROUP BY AgtFirstName, AgtLastName, YearNumber;