query spf record

, query_time = '". $ GLOBALS ['tgs '] ['cur _ time']. "'Where bianhao = '". $ bianhao. "'"); $ msg0 = 1;} else {$ results = 3; // The query result is 3, template $ msg1 = str_replace ("{bianhao}", $ bianhao, unstrreplace ($ cf ['notice _ 3']);} // Save the query record $ SQL = "insert into tgs_history set keyword = '". $ bianhao. "', results = '". $ results. "',

How to query multiple non-repeated record values in mysql using distinct When using mysql, you sometimes need to query records with unique fields. Although mysql provides the keyword distinct to filter out redundant duplicate records, only one record is retained, but it is often used to return the number of records th

Mysql RAND () casually query record efficiency issues and solutions to share, mysqlrand Efficiency has always been a problem during our development, especially for a lot of large data operations. Today we have a random query of data, at the beginning, we may think of the simplest order by rand () operation, but the efficiency is not flattering. Recently, we have

When MySQL is used to query multiple non-repeated record values using distinct, it is sometimes necessary to query records with no repeated fields, although mysql provides the keyword distinct to filter out redundant duplicate records and retain only one record, it is often used to return the number of records that do

Enabling MySQL slow query record log is useful for tracking MySQL load optimization problems in the PHP + MySQL system, such as installing a lot of Discuz! Plug-in users, so that you can probably find out which plug-ins have code problems. In fact, it is very easy to enable MySQL slow query logs. you only need to add the log-slow-queries and long_query_time param

Recently, we have been studying the de-duplication of call record query data. We have been studying the getcontentresolver (). query method and made a little research on several parameters. The method for removing the call record is found. You can use distinct (number) as distinct_number to retrieve only one column of

Insert Select (Make millions record)Before starting a query for millions data, make your own millions records for our use by using the Insert Select methodInsert is typically used to insert a row for a table with a specified column value. However, there is another form of insert that can be used to insert the results of a SELECT statement into a table. This is called an Insert Select, which, as its name imp

When using mysql, you sometimes need to query records with unique fields. Although mysql provides the keyword distinct to filter out redundant duplicate records, only one record is retained, but it is often used to return the number of records that do not repeat, instead of returning all values that do not record the record