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25 maj 2011 · Two options: Use the LIKE keyword, along with percent signs in the string. select * from table where field like '%a%' or field like '%b%'.
To filter data by multiple conditions in a WHERE clause, use the AND operator to connect the conditions. Here’s what this looks like for two conditions: WHERE condition1 AND condition2. In our example, condition1 is dept = 'Finance' and condition2 is salary > 4000.
10 sty 2024 · How do you export data from an SQL database to Excel or another spreadsheet? In this article, I’ll look at various methods and share a few tips for when things go wrong. SQL is the most widely used method of extracting data from a database.
30 lis 2013 · I need to find out the records where the article_title data is the same on more than one record. Here's what I've got: select a.* from articles a where a.article_title = (select article_title from articles where article_title = a.article_title AND a.id <> articles.id)
19 sie 2022 · Data can be imported from MySQL into a Microsoft Excel spreadsheet by using the Import MySQL Data option after selecting either a table, view, or procedure to import. First of all, you do the first 6 steps describe above in "Edit MySQL Data in Excel" then select your table which you want to import.
12 lut 2024 · This tutorial explains how to use SELECT based on values returned from another SELECT statement in MySQL, including an example.
5.6.7 Searching on Two Keys. An OR using a single key is well optimized, as is the handling of AND. The one tricky case is that of searching on two different keys combined with OR: SELECT field1_index, field2_index FROM test_table. WHERE field1_index = '1' OR field2_index = '1'. This case is optimized.
