我想用 Cloud Functions 试试这个。我的 BQ 动态 SQL(在 UI 上运行)declare cols string;set cols=(select STRING_AGG (column_name,',') from `my_db.INFORMATION_SCHEMA.COLUMNS` where table_name='tbla');EXECUTE IMMEDIATE format("""select %s from `my_db.tbla`""",cols);我想table_name从我的...
EXECUTE IMMEDIATE query_string; 在上述示例中,我们首先定义了一个模板表名my_dataset.my_template_table$YYYYMMDD,其中$YYYYMMDD是一个占位符,表示日期部分。然后,我们使用FORMAT_TIMESTAMP函数获取当前日期,并将其格式化为YYYYMMDD的字符串。接下来,我们使用REPLACE函数将模板表名中的占位符替换为实际的日期字符串...
DECLARE error FLOAT64 DEFAULT 0;WHILE NUM_CLUSTERS < 8 DOSET MODEL_NAME = CONCAT('ch09eu.london_station_clusters_', CAST(NUM_CLUSTERS AS STRING));EXECUTE IMMEDIATE format(""" CREATE OR REPLACE MODEL %s OPTIONS(model_type='kmeans', num_clusters=%d, standardize_features = true) AS SELEC...
SQL是IT行业很多岗位都要求具备的一项能力，对于数据岗位而言更是如此，甚至说扎实的SQL基础也往往是入职...
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对于这个版本，您需要显式地列出每个值。如果需要动态sql，则需要将查询构造为字符串，然后运行它。
对于这个版本，您需要显式地列出每个值。如果需要动态sql，则需要将查询构造为字符串，然后运行它。
SELECT 'Id 1' id, 'masterProductId' subject, '=' operator, '1007' value UNION ALL SELECT '...
SELECT 'Id 2', 'price', '<', '130' UNION ALL SELECT 'Id 3', 'categoryName', '='...
Google BigQuery’sPIVOTfeature helps transform rows into columns, making it easier to analyze and visualize data in a tabular format. By using thePIVOToperator in SQL queries, you can dynamically aggregate values based on specified columns. For instance, you can pivot sales data by year to displ...