🩹 修改 Oracle12c 及以上版本 limit 和 offset 使用绑定参数

Ref: gorm#6806

Signed-off-by: liutianqi <[email protected]>

oracle.go

@@ -298,12 +298,12 @@ func (d Dialector) RewriteLimit(c clause.Clause, builder clause.Builder) {
 
 		if offset := limit.Offset; offset > 0 {
 			_, _ = builder.WriteString(" OFFSET ")
-			_, _ = builder.WriteString(strconv.Itoa(offset))
+			builder.AddVar(builder, offset)
 			_, _ = builder.WriteString(" ROWS")
 		}
 		if hasLimit {
 			_, _ = builder.WriteString(" FETCH NEXT ")
-			_, _ = builder.WriteString(strconv.Itoa(limitRows))
+			builder.AddVar(builder, limitRows)
 			_, _ = builder.WriteString(" ROWS ONLY")
 		}
 	}

oracle_test.go

@@ -2,6 +2,7 @@ package oracle
 
 import (
 	"database/sql"
+	"encoding/json"
 	"log"
 	"os"
 	"reflect"
@@ -134,6 +135,26 @@ func TestCountLimit0(t *testing.T) {
 	}
 }
 
+func TestLimit(t *testing.T) {
+	db, err := dbNamingCase, dbErrors[0]
+	if err != nil {
+		t.Fatal(err)
+	}
+	if db == nil {
+		t.Log("db is nil!")
+		return
+	}
+	TestMergeCreate(t)
+
+	var data []TestTableUser
+	result := db.Model(&TestTableUser{}).Limit(10).Find(&data)
+	if err = result.Error; err != nil {
+		t.Fatal(err)
+	}
+	dataBytes, _ := json.MarshalIndent(data, "", "  ")
+	t.Logf("Limit(10) got size = %d, data = %s", len(data), dataBytes)
+}
+
 func TestAddSessionParams(t *testing.T) {
 	db, err := dbIgnoreCase, dbErrors[1]
 	if err != nil {