Question

我创建了这个程序来获取数据库中的所有过程生成一个文档（通过注释）并列出所有＆＃34; in＆＃34;和＆＃34; out＆＃34; params - 这很好，它完美无缺！

我面临的问题是，在我构建的应用程序中，我想选择其中一个程序（所以当用户点击此列表中的一个项目时）并输出其详细信息（创建第二个）处理这个的程序不是一个选项）

这是原始代码（忽略p ***** - 这是故意隐藏的（但从未在过程中使用 - 它用于记录））：

ALTER PROCEDURE "USER"."NetDefineProcs"
/* DOC
  Everything between the DOC tags are used to generate the user document.
*/
( in "p*****" char(20), in "pSearchTerm" long varchar, in "pSelectOne" char(1) default null) 
result( "proccessName" long varchar, "Doc" long varchar, "paramName" long varchar,"paramIO" long varchar,"paramDefault" long     varchar,"paramType" long varchar ) 
begin
    SELECT "proc_name" as "proccessName",
    (SELECT substr(source, charindex('/* DOC', source)+6, charindex('*/', source) - charindex('/* DOC', source)-6 ) FROM     "sys"."sysprocedure" where "proc_name" = "proccessName" AND charindex('/* DOC', source) > 0) as "Doc",
    "LIST"("parm_name" order by "parm_type" asc,"parm_id" asc) as "paramName",
    "LIST"("parm_type" order by "parm_type" asc,"parm_id" asc) as "paramIO",
    "LIST"("isnull"("default",'null') order by "parm_type" asc,"parm_id" asc) as "paramDefault",
    "LIST"("isnull"("domain_name",'null') order by "parm_type" asc,"parm_id" asc) as "paramType"
    from "sys"."sysprocedure" as "pr" key join "SYS"."SYSPROCPARM" as "pa" key join "SYS"."SYSDOMAIN"
  -- Below code requires sybase 16 - temporary version 11 friendly version above
  --  "LIST"("isnull"("base_type_str",'null') order by "parm_type" asc,"parm_id" asc) as "paramType"
  --  from "sys"."sysprocedure" as "pr" key join "SYS"."SYSPROCPARM" as "pa" --where pr.proc_name = o.proc_name  ;
  --  WHERE "proc_name" like 'net%' AND "proc_name" like '%' + pSearchTerm + '%'

    WHERE "proc_name" = pSearchTerm OR "proc_name" like 'net%' AND "proc_name" like '%' + pSearchTerm + '%'

    group by "proc_name"
    order by 1 asc
end

上面的代码适用于获取所有这些代码，现在这里是我写的代码，试图只获取一个

ALTER PROCEDURE "USER"."NetDefineProcs"
/* DOC
  Everything between the DOC tags are used to generate the user document.
*/
( in "p*****" char(20), char(20), in "pSearchTerm" long varchar, in "pSelectOne" char(1) default null) 
result( "proccessName" long varchar, "Doc" long varchar, "paramName" long varchar,"paramIO" long varchar,"paramDefault" long varchar,"paramType" long varchar ) 
begin

    CASE
        WHEN pSelectOne = '1' THEN SELECT FIRST "proc_name" as "proccessName",
        ELSE SELECT "proc_name" as "proccessName",
    END

    (SELECT substr(source, charindex('/* DOC', source)+6, charindex('*/', source) - charindex('/* DOC', source)-6 ) FROM "sys"."sysprocedure" where "proc_name" = "proccessName" AND charindex('/* DOC', source) > 0) as "Doc",
    "LIST"("parm_name" order by "parm_type" asc,"parm_id" asc) as "paramName",
    "LIST"("parm_type" order by "parm_type" asc,"parm_id" asc) as "paramIO",
    "LIST"("isnull"("default",'null') order by "parm_type" asc,"parm_id" asc) as "paramDefault",
    "LIST"("isnull"("domain_name",'null') order by "parm_type" asc,"parm_id" asc) as "paramType"
    from "sys"."sysprocedure" as "pr" key join "SYS"."SYSPROCPARM" as "pa" key join "SYS"."SYSDOMAIN"
  -- Below code requires sybase 16 - temporary version 11 friendly version above
  --  "LIST"("isnull"("base_type_str",'null') order by "parm_type" asc,"parm_id" asc) as "paramType"
  --  from "sys"."sysprocedure" as "pr" key join "SYS"."SYSPROCPARM" as "pa" --where pr.proc_name = o.proc_name  ;
  --  WHERE "proc_name" like 'net%' AND "proc_name" like '%' + pSearchTerm + '%'

    WHERE "proc_name" = pSearchTerm OR "proc_name" like 'net%' AND "proc_name" like '%' + pSearchTerm + '%'

    group by "proc_name"
    order by 1 asc
end

现在我知道有一个语法错误，因为select语句有尾随＆＃39;＆＃39;但是，有什么方法可以让我有类似于我试图实现的东西，而不会让它变得凌乱吗？

Answer 1

解决了！

将此添加到＆＃34; in＆＃34; PARAMS

in "pSelectOne" char(1) default null

并将where子句更改为

WHERE (pSelectOne IS NOT NULL and "proc_name" = pSearchTerm) or (pSelectOne IS NULL and "proc_name" like 'net%' AND "proc_name" like '%' + pSearchTerm + '%')

它有效。

SQL Anywhere条件选择语句

1 个答案: