无法使用 SQL Fiddle 查询 Table

Question

我正在使用 SQL Fiddle，但我无法运行一个简单的查询 (SELECT * FROM CUSTOMER;)下面的代码。我得到的唯一错误是 "Oops! Something went wrong. Try it again and if this keeps happening, email admin@sqlfiddle.com about it." 在我向 SQL Fiddle 发送电子邮件之前，我想我会检查我的架构中是否存在导致问题的错误。

CREATE TABLE CUSTOMER (
C_CUSTOMER_ID  INTEGER(3)   NOT NULL  UNIQUE,
C_LNAME        VARCHAR(20)  NOT NULL,
C_FNAME        VARCHAR(15)  NOT NULL,
C_ADDRESS      VARCHAR(50)  NOT NULL,
C_CITY         VARCHAR(25)  NOT NULL,
C_STATE        CHAR(2)      NOT NULL,
C_ZIP          CHAR(5)      NOT NULL,
C_HOME_PHONE   CHAR(10)     NOT NULL,
C_MOB_PHONE    CHAR(10),
C_OTH_PHONE    CHAR(10),
PRIMARY KEY (C_CUSTOMER_ID));

CREATE TABLE ORDER_TABLE (
ORDER_ID       INTEGER(5)   NOT NULL  UNIQUE,
ORDER_DATE     DATETIME     NOT NULL,
ORDER_NOTES    VARCHAR(250) NOT NULL,
C_CUSTOMER_ID  INTEGER,
PRIMARY KEY (ORDER_ID),
FOREIGN KEY (C_CUSTOMER_ID) REFERENCES CUSTOMER(C_CUSTOMER_ID));

CREATE TABLE DONUT (
DONUT_ID     INTEGER(3)       NOT NULL  UNIQUE,
DONUT_NAME   VARCHAR(15)  NOT NULL,
DONUT_DESCR  VARCHAR(50)  NOT NULL,
DONUT_PRICE  DECIMAL(2,2) NOT NULL,
PRIMARY KEY (DONUT_ID));

CREATE TABLE LINE_ITEMS (
DONUT_ID   INTEGER    NOT NULL,
ORDER_ID   INTEGER    NOT NULL,
QUANTITY INTEGER(3) NOT NULL,
PRIMARY KEY (DONUT_ID, ORDER_ID),
FOREIGN KEY (DONUT_ID) REFERENCES DONUT(DONUT_ID),
FOREIGN KEY (ORDER_ID) REFERENCES ORDER_TABLE(ORDER_ID));

Answer 1

SQL Fiddle 多年来一直存在问题（请参阅 SO 上的 ), and hasn't had an update to the source they have on GitHub for over 2 years. Also, looking at all sqlfiddler 标签，很多人都遇到了类似的问题。

我在 RexTester 上试过你的代码，它没有问题，所以我想这是 SQL Fiddle 的另一个问题，而不是你的代码。

无法使用 SQL Fiddle 查询 Table

Unable to Query Table with SQL Fiddle

mysql

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sql-server

sqlfiddle