更新 createtable.sql

1961cb0c · 王晓庆 · b74909c2 · 1961cb0c
--- a/createtable.sql
+++ b/createtable.sql
@@ -4,40 +4,40 @@ USE TPCH
 IF OBJECT_ID('region', 'U') IS NULL
  CREATE TABLE region (
    regionkey INTEGER PRIMARY KEY,
-    name char(25),
-    comment varchar(152)
+    name nCHAR(25),
+    comment nvarchar(152)
  )

 IF OBJECT_ID('nation', 'U') IS NULL
  CREATE TABLE nation (
    nationkey INTEGER PRIMARY KEY,
-    name CHAR(25),
+    name nCHAR(25),
    regionkey INTEGER REFERENCES Region(regionkey),
-    comment VARCHAR(152)
+    comment nVARCHAR(152)
  )

 IF OBJECT_ID('supplier', 'U') IS NULL
  CREATE TABLE supplier (
    suppkey INTEGER PRIMARY KEY,
-    name CHAR(25),
-    address VARCHAR(40),
+    name nCHAR(25),
+    address nVARCHAR(40),
    nationkey INTEGER REFERENCES Nation(nationkey),
-    phone CHAR(15),
+    phone nCHAR(15),
    acctbal REAL,
-    comment VARCHAR(152)
+    comment nVARCHAR(152)
  )

 IF OBJECT_ID('part', 'U') IS NULL
  CREATE TABLE part (
    partkey INTEGER PRIMARY KEY,
-    name VARCHAR(55),
-    mfgr CHAR(25),
-    brand CHAR(10),
-    type VARCHAR(25),
+    name nVARCHAR(55),
+    mfgr nCHAR(25),
+    brand nCHAR(10),
+    type nVARCHAR(25),
    size INTEGER,
-    container CHAR(10),
+    container nCHAR(10),
    retailprice REAL,
-    comment VARCHAR(23)
+    comment nVARCHAR(23)
  )


@@ -47,20 +47,20 @@ IF OBJECT_ID('partsupp', 'U') IS NULL
    suppkey INTEGER REFERENCES Supplier(suppkey),
    availqty INTEGER,
    supplycost REAL,
-    comment VARCHAR(199),
+    comment nVARCHAR(199),
    PRIMARY KEY(partkey,suppkey)
  )

 IF OBJECT_ID('customer', 'U') IS NULL
  CREATE TABLE customer (
    custkey INTEGER PRIMARY KEY,
-    name VARCHAR(25),
-    address VARCHAR(40),
+    name nVARCHAR(25),
+    address nVARCHAR(40),
    nationkey INTEGER REFERENCES Nation(nationkey),
-    phone CHAR(15),
+    phone nCHAR(15),
    acctbal REAL,
-    mktsegment CHAR(10),
-    comment VARCHAR(17)
+    mktsegment nCHAR(10),
+    comment nVARCHAR(17)
  )


@@ -71,10 +71,10 @@ IF OBJECT_ID('orders', 'U') IS NULL
    orderstatus CHAR(1),
    totalprice REAL,
    orderdate DATE,
-    orderpriority CHAR(15),
-    clert CHAR(15),
+    orderpriority nCHAR(15),
+    clert nCHAR(15),
    shippriority INTEGER,
-    comment VARCHAR(79)                                           /* totalprice = SUM(Lineitem.extendedprice*(1-Lineitem.discount)*(1+Lineitem.tax)) */
+    comment nVARCHAR(79)                                           /* totalprice = SUM(Lineitem.extendedprice*(1-Lineitem.discount)*(1+Lineitem.tax)) */
  )

 IF OBJECT_ID('lineitem', 'U') IS NULL
@@ -92,9 +92,9 @@ IF OBJECT_ID('lineitem', 'U') IS NULL
    shipdate DATE,
    commitdate DATE,
    receipdate DATE,
-    shipinstruct CHAR(25),
-    shipmodel CHAR(10),
-    comment VARCHAR(44),
+    shipinstruct nCHAR(25),
+    shipmodel nCHAR(10),
+    comment nVARCHAR(44),
    -- PRIMARY KEY(orderkey, linenumber),
    -- FOREIGN KEY(partkey,suppkey) REFERENCES PartSupp(partkey,suppkey)          /* extendedprice = quantity*Part.retailprice */
  )