Showing posts with the label SAS utility

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SQL Interview Success: Unlocking the Top 5 Frequently Asked Queries

 Here are the five top commonly asked SQL queries in the interviews. These you can expect in Data Analyst, or, Data Engineer interviews. Top SQL Queries for Interviews 01. Joins The commonly asked question pertains to providing two tables, determining the number of rows that will return on various join types, and the resultant. Table1 -------- id ---- 1 1 2 3 Table2 -------- id ---- 1 3 1 NULL Output ------- Inner join --------------- 5 rows will return The result will be: =============== 1  1 1   1 1   1 1    1 3    3 02. Substring and Concat Here, we need to write an SQL query to make the upper case of the first letter and the small case of the remaining letter. Table1 ------ ename ===== raJu venKat kRIshna Solution: ========== SELECT CONCAT(UPPER(SUBSTRING(name, 1, 1)), LOWER(SUBSTRING(name, 2))) AS capitalized_name FROM Table1; 03. Case statement SQL Query ========= SELECT Code1, Code2,      CASE         WHEN Code1 = 'A' AND Code2 = 'AA' THEN "A" | "A

Write and Read Excel files into SAS Studio

The point is how to import an excel file into SAS. Step by step process given on reading Excel file into SAS and writing Excel file from SAS. SAS vs Excel Files Reading an Excel file into SAS Suppose that you have an Excel spreadsheet called auto.xlsx. The data for this spreadsheet is shown below: MAKE MPG WEIGHT PRICE AMC Concord 22 2930 4099 AMC Pacer 17 3350 4749 AMC Spirit 22 2640 3799 Buick Century 20 3250 4816 Buick Electra 15 4080 7827 Import Wizard Using the Import Wizard is an easy way to import data into SAS. The Import Wizard can be found on the drop-down file menu. Although the Import Wizard is easy it can be time-consuming if used repeatedly. The very last screen of the Import Wizard gives you the option to save the statements SAS uses to import the data so that they can be used again. The following is an example that uses common options and also shows that the file was imported correctly. PROC IMPORT OUT= WORK.auto1 DATAFILE= "C:\auto.xl" D