sql format pm

) -- 16.05.06Select CONVERT (varchar (100), GETDATE (), 5) -- 16-05-06Select CONVERT (varchar (100), GETDATE (), 6) -- 16 05 06Select CONVERT (varchar (100), GETDATE (), 7) -- 05 16, 06Select CONVERT (varchar (100), GETDATE (), 8) -- 10:57:46Select CONVERT (varchar (100), GETDATE (), 9) -- 05 16 2006 10: 57: 46: 827AMSelect CONVERT (varchar (100), GETDATE (), 10) -- 05-16-06Select CONVERT (varchar (100), GETDATE (), 11) -- 06/05/16Select CONVERT (varchar (100), GETDATE (), 12) -- 060516Select CO

Monthly Statistics Select convert (char (7), ddate, 121), count (*) from datetest group by convert (char (7), ddate, 121) Resolution: Char (7) contains only seven characters for sorting. Convert (Data_type, expression [, style]) Note:This style is generally used only when the time type (datetime, smalldatetime) and string type (nchar, nvarchar, Char, varchar) are converted to each other. Example:SelectConvert(Varchar (30), getdate (), 101) nowResult:Now-------------------------------

HH12:MI:SS PM "" To implement a format control character that adds special characters. SELECT to_char (sysdate, ' fmyyyy ' year "MM" month "DD" Day ") from dual; Ddspth ~~ DD is a format control character. Th is the ordinal number, which converts the date into the English ordinal spelling. The SP is the cardinal Word and converts the date to the cardinal word sp

　 To_char (sysdate, ' SS ') 10 　 To_char (sysdate, ' sssss ') 55510 　 To_char (sysdate, ' TS ') 3:25:10 　 To_char (sysdate, ' WW ') 24 　 To_char (Systimestamp, ' W ') 3 　 To_char (Sysdate, ' year ') Thousand NINE 　 To_char (sysdate, ' YYYY ') 2009 　 To_char (Systimestamp, ' YYY ') 009 　

Pl/SQL developer encoding format settings 1. pl/SQL developer Chinese fields are garbled: This is caused by inconsistent database numbering formats and pl/SQL developer encoding formats. 2. view and modify the oracle database character set: select userenv ('language') from dual; query result: SIMPLIFIED CHINESE_CHINA.A

CONVERT (varchar (100), GETDATE (), 12) -- 060516Select CONVERT (varchar (100), GETDATE (), 13) -- 16 05 2006 10: 57: 46: 937Select CONVERT (varchar (100), GETDATE (), 14) -- 10: 57: 46: 967 The conversion time of a style number is as follows: Style (2 bits indicate the year) Style (4-digit indicates the year) Input/output format 0 100 Mon dd yyyy hh: miAM

[MySQL Notes] SQL optimization tool-explain the output format of the explain command If you have experience using MySQL, you may encounter slow SQL queries in your project. In some scenarios, you can easily locate the problem (for example, when a single table operation has slow SQL queries, check the

fields should be indexed, and also help you confirm that SQL execution is optimizer in a reasonable order .joins more than one table. For example, if you have a SQL statement like this:Select T1.id, T2.link, t3.detail from T1, T2, T3 where T1.id t2.sign;When this statement executes, optimizer does not necessarily join the 3 tables in the order of the tables listed from, and the join order of the table is l

The format () function is used to format the display of a field. SQL FORMAT () syntax SELECT FORMAT (Column_name,format) from table_name; Parameters Description column_name Necessar

Original address: http://www.ncloud.hk/%E6%8A%80%E6%9C%AF%E5%88%86%E4%BA%AB/export-query-result-as-json-format-in-sql-server-2016/Use the FOR JSON clause to export the query results as a JSON string, as an attribute that is first available in SQL Server 2016. If you are familiar with the FOR XML clauses, it is easy to understand the for JSON:Select CColumn, expre

FORMAT () functionThe Format function is used for formatting the display of a field.SQL FORMAT () syntaxSELECT FORMAT (Column_name,format) from table_name Parameters Description column_name Necessary. The field to

Tags: how to set PL/SQL date display format, PL/SQL date displayJoke: In entering the company for a period of time, will always meet a variety of small problems, but finally still "looking for Niang, ask Google" solutionThe decision. But recently the company introduced a few new recruits, small problems a bunch of, PL/SQL