Tag: WHERE
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Post Views: 83 1. Reference:Optimization of List Interface Response Timeout 2. Reference:In Spatie\QueryBuilder, query SQL enforces index 3. However, when the fields in where contain shipping_at_gmt, Shipping_status, operator_user_id, after forcing the combined index is a negative optimization. SQL execution time-consuming sorting is as follows 4. Preliminarily summarize the rules, when the fields in where contain Shipping_at_gmt and Shipping_Status|Shipping_Type|Operated_Source When the…
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Post Views: 28 1. An interface request response timeout, because count(*) SQL takes 54 seconds. The amount of data in the table exceeds 10 million. as shown in Figure 1 2. The table field Shipping_Type has an index to add, and its value is only 1 and 2 possibilities. Decide to add the where condition Shipping_Type in (1,2). The query…
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Post Views: 16 1. The route of a requesting resource file is as follows: /static/xxx/9915995c-2952-4 90c-8e51-037a0950233c/assets/js/react.f886be.js 2. Since / is included in asset_key. Laravel routing components allow all characters except / . You must explicitly allow / to be part of a placeholder using the WHERE conditional regular expression. Otherwise, the route will fall back. The routes/web.php file is used…
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Post Views: 17 1. Expect the generated SQL statement, as shown in Figure 1 2. LIKE: The first operand should be a field name or dB expression, and the second operand can make a string or an array, representing the value of the first operand that needs to be fuzzy. For example,[‘like’, ‘name’, ‘tester’]will generate name like%tester%. If the range…