vscode: Add snippet file for query & scan into slice

.vscode/sqlSnippers.code-snippets

@@ -0,0 +1,39 @@
+{
+	// Place your gochan workspace snippets here. Each snippet is defined under a snippet name and has a scope, prefix, body and 
+	// description. Add comma separated ids of the languages where the snippet is applicable in the scope field. If scope 
+	// is left empty or omitted, the snippet gets applied to all languages. The prefix is what is 
+	// used to trigger the snippet and the body will be expanded and inserted. Possible variables are: 
+	// $1, $2 for tab stops, $0 for the final cursor position, and ${1:label}, ${2:another} for placeholders. 
+	// Placeholders with the same ids are connected.
+	// Example:
+	// "Print to console": {
+	// 	"scope": "javascript,typescript",
+	// 	"prefix": "log",
+	// 	"body": [
+	// 		"console.log('$1');",
+	// 		"$2"
+	// 	],
+	// 	"description": "Log output to console"
+	// }
+
+	"Scan sql rows" : {
+		"scope": "go",
+		"prefix": ["queryscan", "scan-rows"],
+		"body": [
+			"rows, err := QuerySQL(${1:'sql'})",
+			"if err != nil {",
+				"\treturn nil, err",
+			"}",
+			"var ${2:itemname}s []${3:elementType}",
+			"for rows.Next() {",
+				"\tvar ${2:itemname} ${3:elementType}",
+				"\terr = rows.Scan($0)",
+				"\tif err != nil {",
+					"\t\treturn nil, err",
+				"\t}",
+				"\t${2:itemname}s = append(${2:itemname}s, ${2:itemname})",
+			"}",
+			"return ${2:itemname}s, nil"],
+		"description": "A function template that queries and scans the rows into a slice"
+	}
+}