使用赋值操作符给变量赋值 使用 SELECT INTO 语句给变量赋值 有多种方式给一个变量赋值: 使用赋值操作符( := ) 给变量赋值,值可以是常量、变量、表达式或者子程序返回值。 使用 SELECT INTO 或 FETCH 语句给变量赋值,值多来自于表或者 SQL 运算结果。 将变量作为子程序的 OUT 或者 IN OUT 参数传入,然后在...
Terms query Parameters Terms lookup Example Example: Nested fields Parameters Terms query Use the terms query to search for multiple terms in the same field. For example, ...
Terms query Parameters Terms lookup Example Example: Nested fields Parameters Terms query Use the terms query to search for multiple terms in the same field. For example, ...
Route discovery service (RDS) Statistics Route discovery service (RDS) The route discovery service (RDS) API is an optional API that Envoy will call to dynamically fetch route...
curl examples Fetch many variations on a URL Follow redirects automatically Impersonating a specific web browser Issuing a web search Tell the server where you didn’t come from...
Command line tool Configuration settings Default structure of Scrapy projects Sharing the root directory between projects Using the scrapy tool Creating projects Controlling pr...