Question

我希望有一个检查约束，该约束只允许插入字母字符，例如：'A''Marie'，不允许类似'1''*＃€* a'的东西。

此刻，o具有以下表达式：

2020-01-18 17:31:44,592 main WARN The JNDI InitialContextFactory class name [org.apache.activemq.jndi.ActiveMQInitialContextFactory] was provided, but there was no associated provider URL. This is likely to cause problems.
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
2020-01-18 17:31:49,638 main ERROR An exception occurred processing Appender jmsQueue org.apache.logging.log4j.core.appender.AppenderLoggingException: Error sending to JMS Manager 'jmsQueue': JMS message producer not available
    at org.apache.logging.log4j.core.appender.mom.JmsManager.send(JmsManager.java:455)
    at org.apache.logging.log4j.core.appender.mom.JmsAppender.append(JmsAppender.java:251)
    at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
    at org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
    at org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
    at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
    at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:543)
    at org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:502)
    at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:485)
    at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:460)
    at org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:82)
    at org.apache.logging.log4j.core.Logger.log(Logger.java:161)
    at org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2198)
    at org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2152)
    at org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2135)
    at org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2011)
    at org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1983)
    at org.apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.java:740)
    at com.noamg.Main.main(Main.java:12)

Answer 1

您可以使用broker_url = ampq://guest:***@192.168.43.130:5672// result_backend = db+postgresql://postgres:***@192.168.43.130:5432/postgres：

not like

也就是说，CONSTRAINT CK_Pn CHECK (Name NOT LIKE '%[^A-Za-z]%'))的字符不是字母字符。

检查varchar列是否仅包含字母字符

1 个答案: